Welcome to Impact Quantum, the podcast for the quantum curious
Speaker:and the entangled enthusiast alike. Today,
Speaker:we're diving deep into the fascinating world where theoretical physics
Speaker:meets real world engineering with none other than Maruan
Speaker:Salhi, physicist and CEO of Qubit Engineering.
Speaker:Forget Skrodinger's cat. We're talking about the kind of quantum that
Speaker:optimizes wind farms and power grids, not
Speaker:feline survival probabilities. Maruwan shares
Speaker:how his team is tackling massive engineering challenges using
Speaker:quantum inspired approaches, all without needing a
Speaker:working quantum computer yet. From turbine
Speaker:layouts to toggling thousands of grid switches like it's a game of
Speaker:high stakes Tetris, this episode is proof that
Speaker:sometimes the most boring problems are where the real
Speaker:innovation happens. So if you've ever wondered how quantum
Speaker:computing is quietly reshaping our infrastructure, this
Speaker:one's for you. Let's jump in.
Speaker:Hello and welcome back to Impact Quantum, a podcast for the
Speaker:quantum curious. And with me today is the most quantum
Speaker:curious person I know, Candice Kahooli. How's it going,
Speaker:Candace? It's good, it's good. Thank you so much. I'm so happy to be back
Speaker:and happy to talk to our guest today. That's good to see you back
Speaker:in the studio. And we have a really interesting guest today,
Speaker:Marwan Salhi, who is a
Speaker:physicist and he's also the CEO and co founder of
Speaker:Qubit Engineering. And I love the tagline that
Speaker:they have. It says harnessing the power of the quantum realm.
Speaker:Getting a very distinct ant man and the wasp
Speaker:kind of vibe from that. And judging by
Speaker:the look on your face, I'm not the first person to say that
Speaker:in the virtual green room. We talked about some of your work and
Speaker:you've lived in Maryland for a time, so. So
Speaker:tell us about yourself. Welcome to the show. Yeah, thank you. Thanks for
Speaker:the invite, Frank. Happy to join you. Candice, here.
Speaker:So, yes. So I am a physicist. I'm computational
Speaker:physicist, slash theoretical. I did my interest in
Speaker:quantum physics, actually in quantum computing to be precise, started
Speaker:early on, but you know, we only saw
Speaker:the availability of quantum computing machines, quantum
Speaker:machines, only in the last few years
Speaker:we to be kind of precise, that's when you can actually have
Speaker:more. You have an actual access to play with the machine and visit.
Speaker:So a quantum physicist would focus on quantum
Speaker:optimization. I am also the
Speaker:CEO and co founder of Qubit Engineering, an optimization
Speaker:startup for
Speaker:quantum formulating to quantum to formulate problems in
Speaker:engineering in. In a way that we can run it on
Speaker:actual quantum computers. I co founded the
Speaker:Cubit Engineering with my colleague
Speaker:George is also a physicist. He's a professor at University of
Speaker:Tennessee in quantum information science. And also
Speaker:our third co founder is Hatton, he's
Speaker:an engineer. We, we kind of got
Speaker:him into working with us and helping us in building our software
Speaker:for, for quantum applications. Very cool.
Speaker:Very cool. I, I just have a, a lot of questions because there was.
Speaker:What types of engineering problems have you or are the most popular?
Speaker:I've just wondered about that. That's a good, that's a good question.
Speaker:So I would say it's not, it's not about how
Speaker:popular, it's about finding the right use case.
Speaker:A lot of effort in the community is to identify which
Speaker:problem can benefit from quantum computing, from quantum
Speaker:algorithms, from quantum optimization that we can see advantage over
Speaker:classical methods, over classical approaches. So
Speaker:and that's, that's also how we, how we looked at it. We looked at
Speaker:the. So in fact, in fact as I said, we're, we're
Speaker:not engineers to start with, but we are physicists working in the
Speaker:engineering now industry. And the first thing
Speaker:that we started thinking of, okay, what kind of problems can we
Speaker:solve? What kind of problems can we see real
Speaker:impact or quick impact or the
Speaker:low hanging fruit kind of we can capture using
Speaker:quantum optimization approaches. And the
Speaker:answer comes from a mathematical, it's purely
Speaker:mathematical. So we needed to understand the type of problems
Speaker:that, that have interest in the engineering industry, have an
Speaker:impact, but also something that the quantum
Speaker:optimization can, can contribute to.
Speaker:And the, the, the answer for us is, is
Speaker:not not only for us, but the answer for, is basically any problem,
Speaker:any engineering problem that we can represent
Speaker:as a network of nodes and edges. For
Speaker:people who are familiar with the quantum annealer machine D wave,
Speaker:try to think of this, the
Speaker:topology of the D wave machine, it's
Speaker:built of qubits and connections. So you need to find a
Speaker:problem that cannot be mapped into that. And you'll
Speaker:be surprised in our engineering world how many
Speaker:problems are. And one of the problems,
Speaker:the first problem that you started working with is the design of
Speaker:wind farms. Wind farm layer optimization. Yes.
Speaker:And maybe you don't see it that way, but let me, let me kind of
Speaker:hint into that. Turbines in a wind farm, if you, if you look
Speaker:at the wind farm, so
Speaker:actual turbines, you can think of them as nodes.
Speaker:And then the wake interaction between any two
Speaker:turbines, you can think of it as the edge connecting them.
Speaker:And that changes based on the relative position of these
Speaker:turbines depends on
Speaker:the distances, depends on their altitude. So
Speaker:it's actually physically, if you look at it from a physics
Speaker:perspective, it's a perfect network
Speaker:of what we call a fully connected system that
Speaker:matches, you know, this, the type of problems we're looking for. And that
Speaker:was a choice. That's how we selected the first use case.
Speaker:Interesting. I, I would not have thought that.
Speaker:I mean it makes sense now that you say it, like turbulence and things like
Speaker:that. Um, because these windmills are, are massive. Like I,
Speaker:I mean I've never been more, less
Speaker:than maybe a mile or
Speaker:two from them. And they're just massive like you just.
Speaker:And, and I would imagine, I mean they're like airplane wings basically, right? I mean.
Speaker:Yeah. So I mean the, the, the hub altitude, the
Speaker:altitude of the hub, the center of the turbine where I feel ways
Speaker:of rotating. I mean it can go
Speaker:up to 120, 140
Speaker:meters in the big ones. So the
Speaker:actual diameter of turbines, the big ones, I think they can
Speaker:go to, yeah,
Speaker:116. I think that's the biggest you've seen.
Speaker:So they can be really huge. Again, the way
Speaker:we look at it doesn't matter the, the, the size.
Speaker:From a study perspective, there are
Speaker:a point or in a network, of course we
Speaker:associate with that particular, and obviously not a point but a variable in
Speaker:our system. But that particular variable is associated
Speaker:with a power generation. It's associated
Speaker:with altitude, exact position,
Speaker:it's associated with wake effect. It's
Speaker:causing. And it's also submitted to a kind of
Speaker:feeling the wake of other. Generated by other turbines around.
Speaker:Interesting.
Speaker:How specifically do quantum computers help with that? In ways
Speaker:that, you know, a classical computer wouldn't like. What
Speaker:is, is it just a good old fashioned optimization you're trying to
Speaker:find? Is that what it is? So, so,
Speaker:so let me, let me, let me step back a little bit. What we are
Speaker:solving, we're solving challenging optimization
Speaker:problems which are as I said, are built
Speaker:in the form of the network of nodes and edges.
Speaker:And what this does to the problem, it
Speaker:creates almost an infinite
Speaker:search space of possibilities you have.
Speaker:So the best example we can give a simple, a good
Speaker:example would be if you have a room with
Speaker:100 seats and you have 50 guests and you're trying to
Speaker:distribute these guests, there is almost
Speaker:an infinite number of possibilities. The exact number would be 10 to the
Speaker:31. Oh, wow. Okay. If you, if you
Speaker:want. And, and we did actually this calculation with our, with the, with
Speaker:a collaborator from the supercomputer at operational lab. And we
Speaker:said if you want to do a brute force and consider all
Speaker:possibilities, how much time would we need
Speaker:using your supercomputer. That time was Titan, which is,
Speaker:I think at that point was maybe the first or the second
Speaker:fastest supercomputer in the world. This is, this is just a few years ago.
Speaker:And the answer was around 31 years.
Speaker:I think with the new machine available at ORL now
Speaker:Frontier, it's probably maybe 30 years
Speaker:or something. Wow. But it's, it's
Speaker:so, so that's, that's how rich these, this type of problems
Speaker:now. The, the. And that's why
Speaker:quantum computing can make, can make a, can make a huge
Speaker:impact in the future because it can navigate
Speaker:this space not through
Speaker:trials of looking at every single possibility,
Speaker:but just by literally zooming in through that space and
Speaker:finding the optimum configuration.
Speaker:Interesting. I mean, how long. What's the, what's the time on a quantum
Speaker:computer to compute? So, so, so on a
Speaker:quantum computer, this, this, this problem is like microseconds.
Speaker:It's very physical. But okay, this, this
Speaker:problem of 5,000 from A.
Speaker:And, and this is a very, it's not, from an engineering perspective, very
Speaker:interesting. It's simple. It's also kind of boring. You know,
Speaker:it's not like the, you know, we're gonna change the world, we're gonna do this,
Speaker:we're gonna break encryption, we're gonna cure cancer, map all the
Speaker:protein folds and whatnot. Right? Like, it's pretty, to be
Speaker:blunt, basic. But you know what, boring
Speaker:is where the money is, right? Like, there's a lot of these financial
Speaker:gurus. The more boring something is, the less competition is going to
Speaker:be. I don't want to go down that rabbit hole, but it
Speaker:sounds like boring tends to pay the bills. Right?
Speaker:That's a good point. In fact. In fact, you know,
Speaker:in general, industry only care about what
Speaker:kind of advantage you can provide them. It doesn't matter whether you're using a quantum
Speaker:computer or simple Excel sheet. This is, this is the reality.
Speaker:But of course, we will reach a point where sophisticated
Speaker:or, you know, basic tools are not the solution, and
Speaker:even some sophisticated classical methods cannot even
Speaker:cut through. And that's why you need to start thinking about
Speaker:new innovative approaches and what we really do. And the way I look
Speaker:at what I'm doing over the last few years is bridging the gap
Speaker:between some interesting tools that are mainly used
Speaker:in research, that usually engineers are not trained to
Speaker:use them and bring them back to the engineering and say,
Speaker:hey, using these tools, we can get this serious advantage.
Speaker:In fact, you know, we've been doing this. As
Speaker:I said, our first use case was in the wind farm. The first, the first,
Speaker:the first. You know, the first. When we
Speaker:started working on this and we did not start on our own, we started
Speaker:collaborating with actual wind engineers, with actual
Speaker:wind farm developers. The companies, different companies
Speaker:from almost everywhere. The first thing I say, you guys, you're not
Speaker:wind engineers. What are you doing here? What, what, what's the, you know, what's the
Speaker:purpose? And say, hey, we have some, some cool tools for
Speaker:optimization and we want to test them with you guys and want to see how
Speaker:this. And then after a couple of weeks, you know,
Speaker:once we exchange the data and show them the results, the, the.
Speaker:They are basically now they want to know more. How did, how did you do
Speaker:this and why are you getting so. And then actually
Speaker:even they get surprised with the results we can capture. They say, hey, we want
Speaker:to do this test again like we
Speaker:think. I mean it almost seems like a little bit.
Speaker:You got lucky on this one. Let's, let's try again. Let's change the problem. Let's
Speaker:increase the size a little bit. But it's not,
Speaker:it's not magic or Sonia. It's not. It's basically a new way
Speaker:of solving a problem that they've been using the same method for the last
Speaker:three, four decades now. I'll give a simple
Speaker:example. When it comes to the wind farm layout optimization,
Speaker:the way, the way it's done, basically there is a
Speaker:program, software, you commercial ones,
Speaker:sometimes some developers develop their own internal system
Speaker:and they, the way it starts, they. They
Speaker:basically pick the lands, they have all the data required for the
Speaker:project and then they start from a random design,
Speaker:just random one. And the way they do it, they basically starts
Speaker:moving one turbine at a time from one location to the
Speaker:other while watching how the
Speaker:energy of this change and going up and down. And of course this
Speaker:goes through an iterative process, you know, as long as possible
Speaker:until they see that there is no more progress. Then
Speaker:they stop the calculation. This numerical search and they say
Speaker:we got. This is the, this is the best we can do.
Speaker:We don't do that. We. The way we do it is basically
Speaker:by selecting the position or
Speaker:selecting configuration from
Speaker:thousands of possibilities. Just like the selection
Speaker:of where to place your guests in the room. 50 guests in 100 room.
Speaker:We generate thousands of potential sites for the turbines
Speaker:and then we select the exact number that we want. The
Speaker:advantage here is that you're selecting one
Speaker:coherent configuration rather than
Speaker:moving one turbine
Speaker:which will impact, maybe it will improve the
Speaker:production of one. Basically ease up a little bit on the wake for One
Speaker:turbine, but maybe it will increase the week on another one. And which is an
Speaker:iterative process. So this is, this is a very, it's a very
Speaker:different approach. It's a combinatorial optimizer, which is
Speaker:what quantum computers are meant to. And
Speaker:you know, I will start talking about quantum and maybe I should, I should hint
Speaker:to this. We've been doing. We, we started using
Speaker:quantum annealing machine machine. We built our, our main
Speaker:system using one maneuvering machine or four quantum
Speaker:machine. And and, and slowly we,
Speaker:we, we, we shifted a little bit to using
Speaker:slowly we shifted to using simulators or what
Speaker:we call quantum inspired solvers.
Speaker:I believe this,
Speaker:this name quantum inspired solvers or quantum inspired
Speaker:optimization was introduced to us by
Speaker:Microsoft Azure Quantum. They were pushing for
Speaker:it and today it's,
Speaker:it's the way to go for to support the development
Speaker:of new quantum applications. So the challenge for
Speaker:quantum engineers or quantum application engineers is that they are,
Speaker:they've been trying to map
Speaker:some large engineering, complex engineering problem
Speaker:into a quantum machine that is very
Speaker:limited. The number of qubits, number of connectivity in the,
Speaker:you know, that's submit to, that's subject to noise and errors and so on.
Speaker:And that actually
Speaker:impacted a little bit. So that shifted the focus from
Speaker:developing the application. We're trying to match your application
Speaker:with the current hardware. If we fast forward in the future
Speaker:and we'll have the best quantum computer,
Speaker:then we will never worry. As a quantum
Speaker:application engineer, you will not worry about the machine. You'll just
Speaker:worry and focus on developing your problem, on developing your application.
Speaker:So today the engineer is divided
Speaker:between not only trying to rethink this
Speaker:problem to map it into a quantum machine, but also worrying about
Speaker:the capacity of the machine that he'd be running his problem.
Speaker:So this was kind of clear to us and the
Speaker:opportunity of shifting
Speaker:towards these quantum inspired solvers.
Speaker:What it does first, it actually
Speaker:let you focus on the application rather than on
Speaker:the limitation of resources, rather than on limitation of the number of qubits
Speaker:and of connectivity. You can ask me and
Speaker:say, oh well, you know, you can build the problem
Speaker:however you want and you build your application. But
Speaker:yes, it's not going to run the same way if it's running on a
Speaker:quantum computer versus running on a classical CPU and GPU
Speaker:machine. That's true, but we don't have that machine
Speaker:yet. And another
Speaker:very interesting point is that what we realized
Speaker:by rethinking the problem, we're actually
Speaker:saving a lot of this search space. We're simplifying a little bit this
Speaker:huge search space which is allowing us to
Speaker:achieve and get better solution than classical
Speaker:approaches. When you are selecting
Speaker:a full configuration of a wind farm,
Speaker:you have more chance to get better solution than
Speaker:iterating on moving one turbine at a time
Speaker:based on whatever resolution you have based on doesn't matter
Speaker:the number of iteration you do, you will be stuck in
Speaker:local minimum. Definitely you'll be struggling there.
Speaker:So yes, this
Speaker:quantum formulated wind farm layout optimization problem is not
Speaker:running on the actual quantum machine, but it's running on
Speaker:a solver that's
Speaker:behaving or trying to behave like a
Speaker:machine. And we still get significant advantage.
Speaker:So this is, this is something we've been advocating
Speaker:for and we think this is the lowest hanging
Speaker:fruit. And it is clear
Speaker:today that there is a big shift or towards
Speaker:or there is a serious consideration to quantum spike
Speaker:optimization. And
Speaker:this is, this is in fact if we want to
Speaker:say the priorities today are as follow of what, what
Speaker:can you possibly do? The best thing you can do is to develop
Speaker:applications for quantum inspired solvers. One the
Speaker:next step, which we're not there yet,
Speaker:a lot of companies are open. This is running a problem on
Speaker:a hybrid system, classical, you
Speaker:know, basically a system made
Speaker:up classical computer and quantum computer.
Speaker:The next level would be running it fully on the quantum
Speaker:computer, I believe even running on, on
Speaker:a hybrid system, the classical slash.
Speaker:We are still struggling there because we were
Speaker:not really sure how to decompose the problem
Speaker:between the CPU and the qpu. How can we
Speaker:divide our optimization problem between. It's interesting
Speaker:you say that because what is the,
Speaker:a lot of people will kind of scoff at simulated
Speaker:quantum machines. What's your
Speaker:thought on that sort of debate? Or is it kind of just
Speaker:one of those silly debates that people like to get into?
Speaker:So, so I'm here, I'm talking,
Speaker:I'm focusing on simulated quantum
Speaker:optimization, simulated solvers for,
Speaker:for, for,
Speaker:for quadratic and constrained binary optimization or quadratic constraint
Speaker:binary optimization or even if we consider polynomial
Speaker:problems, not just quadratic. Now the,
Speaker:I would, I would say if you, if we're talking about
Speaker:general simulating a quantum physics system, that's a
Speaker:different story. Simulating a molecule, there is nothing
Speaker:better than actual qubits to simulate molecules.
Speaker:And that particular
Speaker:discussion, it's very, it's, it's,
Speaker:it's clear that the quantum system is multiple.
Speaker:It's better. The challenge there again is how big of a molecule
Speaker:can you simulate today? Right.
Speaker:If you want to do that on, on a classical computer. I mean
Speaker:people have been doing this for Decades now, you know, people are
Speaker:studying molecular dynamics and
Speaker:just trying to simulate the quantum physics of
Speaker:molecules and atoms. They've been doing a lot
Speaker:of good job and a lot of
Speaker:applications and a lot of similarities have been built for that.
Speaker:And their main challenge is that every time they need
Speaker:more and more bigger machines
Speaker:because it doesn't scale up, you know, the same way as a
Speaker:quantum system when it comes to, so, so
Speaker:that's what, that's what mostly uses simulating on a
Speaker:quantum computer for, for when it comes to material size.
Speaker:I think quantum systems will be, will
Speaker:be, would be the best. And some
Speaker:sophisticated high performance
Speaker:computing kind of modules have shown very,
Speaker:very good results and they made a lot of good progress
Speaker:there, but they're still very expensive computation. In
Speaker:fact, the impact, one of the most
Speaker:expected impacts of quantum computing
Speaker:and the industry is on the pharmacology,
Speaker:designing new drugs, designing new molecules. Right.
Speaker:Biochemistry and all that.
Speaker:What we are working on, on terms of simulation is, is
Speaker:purely mathematical. In terms, we are mapping
Speaker:engineering problems, formulating them mathematically in a
Speaker:way, mathematically in a way that we can
Speaker:solve them on these solvers and these quantum spirits.
Speaker:So, so these are two different kind of
Speaker:fields. So when you're trying to simulate the quantum physics
Speaker:system, you better simulate that on an
Speaker:actual quantum computer. But that definitely, it's more natural. But
Speaker:we are taking an engineering problem which, like wind farm design
Speaker:and then now trying to optimize it and simulate it.
Speaker:In fact, what we do, we do simulate the interaction. We take
Speaker:the whole problem, the whole dynamics of it arm and map
Speaker:it into this network of qubits.
Speaker:And we basically, you know,
Speaker:literally match every
Speaker:turbine with an actual qubit and the different interaction it has
Speaker:with the other qubits, everything. So we kind of simulate
Speaker:data. But as I said, the challenge is the machine, the size of
Speaker:the machine, the number of qubits, the number of connectivity you can have and so
Speaker:on. Right.
Speaker:Does this make sense? Yeah, go ahead, take us a little bit away from
Speaker:this for a moment to speak to some of the, you know, the interests and
Speaker:concerns of audience members. So I'm going to ask you. So for
Speaker:someone looking to get involved in the quantum computing field, whether
Speaker:as a student, a developer or an investor,
Speaker:what's the most unexpected piece of
Speaker:advice you would offer? I mean, your experience is quite
Speaker:extensive and the way you talk about everything, I mean, clearly you've
Speaker:got, you've got the skills involved. So what skills do you
Speaker:believe will be the most valuable in this rapidly
Speaker:evolving landscape?
Speaker:That's a Very, very good question. And
Speaker:I have to say this. You know, let
Speaker:me, let me, let me just point something. There are lot of people are working
Speaker:on different things when it comes to quantum computing from
Speaker:the hardware to the software to the error corrections
Speaker:and everyone is contributing to, from, from its own
Speaker:position. The,
Speaker:There are, there are two ways to be part of this
Speaker:game, this, part of this
Speaker:development, the technology development of quantum. Whether
Speaker:you're looking at contributing to it
Speaker:at a earlier stage or in
Speaker:the long run. I believe the investors who are
Speaker:involved in developing and investing in,
Speaker:in quantum hardware, they have the long term vision
Speaker:where they say hey, we want to be, we want to contribute to building this,
Speaker:this, this fabulous machine. This, it's sophisticated machines
Speaker:but it takes time and they look at it that way,
Speaker:they understand it and even you know,
Speaker:as we move forward we will. Right now
Speaker:the space is divided in with superconducting
Speaker:photonics. I don't know, you know,
Speaker:cat cubits.
Speaker:Exactly, all kind of, all kind of qubits.
Speaker:At some point we will see some kind of
Speaker:preference and say oh actually
Speaker:the winner is whatever it is
Speaker:from starting from superconducting to iron traps to
Speaker:neutral atoms to whatever you want to call it, photonics.
Speaker:Right. So, but it's,
Speaker:it's part of you know, investing and, and so on. It's part of the,
Speaker:the vision and the risks that people do. I think we're all learning
Speaker:from, we're learning what is happening from the iron trap side. We're
Speaker:looking from the superconducting, from the photonic. So
Speaker:it's nothing is wasted, everything is useful and we're learning from.
Speaker:Now from. If you look at it from the perspective on an
Speaker:engineer who's trying to be involved, this
Speaker:depends. They want to be part of the hardware. It's different
Speaker:than if they want to be part of the software. I
Speaker:believe there are efforts that will be limited in time.
Speaker:I mean at some point, let's say Microsoft,
Speaker:you know, the majorana, the new topologically protected
Speaker:qubit will be an actual reality
Speaker:and we'll have much better
Speaker:qubits than a lot of the work that we've done so
Speaker:far. And some of these,
Speaker:noise reduction, error correction, all that. Maybe
Speaker:we don't need that anymore. So, so, so I think
Speaker:I, as I said it depends. So you need to choose what,
Speaker:where, what you want to play now. You want to be part of the,
Speaker:the, you want to contribute now early. This is what we need today.
Speaker:That's what we're trying to understand or you want to be part of the future
Speaker:in terms long term. And I don't think there is an
Speaker:answer for one answer for all of them,
Speaker:whether for investors, whether for engineers,
Speaker:whether for entrepreneurs. It depends how you look at it. Let me
Speaker:share what the way we looked at it, we
Speaker:looked at problems that are
Speaker:coming from the engineering. In fact I do. I still
Speaker:remember my first presentation at the IEEE Quantum Week
Speaker:when I said we're, we're looking at an energy problem using
Speaker:one. The first and natural reaction
Speaker:was like we're, we're still talking about atoms and molecules
Speaker:and you're talking about energy. I mean today
Speaker:we're working on power grid. We moved
Speaker:from turbines. So, so if we progressed
Speaker:like I don't know what they would say to me. They say hey, I'm trying
Speaker:to solve power grid management optimization today.
Speaker:But the, the, the idea is that you want to look at it differently. It's,
Speaker:what we are doing is
Speaker:we are mapping the mathematical
Speaker:dynamics, physics dynamics into a theoretical model.
Speaker:It doesn't have to be molecule, doesn't have to be atoms. It's,
Speaker:it's a pure optimization. What
Speaker:it does it give us access to some
Speaker:solutions. Let's call it configurations. Let me give another
Speaker:example that we've been working on for the last three years
Speaker:now. I started with the wind as an example. We're still
Speaker:working a little bit on the way but the focus right now is on power
Speaker:grid management for many reasons. But
Speaker:the good, the Sorry, I lost it.
Speaker:You know, going from
Speaker:there is this idea of finding a problem
Speaker:that has a specific mathematical structure
Speaker:where you can access a solution that you cannot
Speaker:extra sophisticated is feasible through this new way of solving
Speaker:problems, this discrete combinatorial optimization. Let's call it
Speaker:quantum combinatorial optimization. The idea
Speaker:why, in fact why, why we want to solve combinatorial
Speaker:problems using quantum computer. So
Speaker:quantum computer of qubits. They, they actually
Speaker:embed this idea of having all possibilities at
Speaker:the same time through superposition. It's almost like
Speaker:packaging all possibilities in fewer variables,
Speaker:fewer smaller systems and they can navigate through very
Speaker:fast. And that's why they offer an
Speaker:opportunity to solve this problem that in
Speaker:a. From a classical engineer. When I mean classical, I mean
Speaker:using classical methods. This who's trying to
Speaker:avoid what they call the combinatorial explosion.
Speaker:It's literally they say hey, number of possibilities is exponential. I can't
Speaker:deal with this. Yes, of course. That's why you need to change your
Speaker:approach. Now going back to where I started, I said
Speaker:the way we look at it, we saw that there is an opportunity in Engineering
Speaker:where we can map some of these exponentially growing.
Speaker:In fact the correct term of using it called anti hard problems.
Speaker:We can navigate this
Speaker:space slightly better and faster to get
Speaker:results or solutions we cannot get before. And in fact
Speaker:we learned from it. In fact, that's why right now,
Speaker:for example, we're solving, we're solving large
Speaker:scale problems in this discrete space which
Speaker:wasn't very clear, wasn't very
Speaker:intuitive to many scientists or engineers. The beginning when you said,
Speaker:when we suggested this, this, this approach.
Speaker:Let me, let me connect another example.
Speaker:So I mentioned the grid. You can think that the
Speaker:grid is, is, is a very large infrastructure. It's very important, it's
Speaker:critical. The way, to be specific.
Speaker:Yes, yes, the electric power is good. The electric power grid, the
Speaker:way we look at it through our algorithms,
Speaker:if I may to simplify this way, it's a bunch of
Speaker:switches that you have maybe thousands, tens of thousands and
Speaker:you're trying to find which one to keep on, which one to turn on.
Speaker:It's again another combinatorial optimization.
Speaker:And for that you
Speaker:need, you cannot do it the classical. You cannot do brute force. You cannot do
Speaker:classical where you try one at a time. You need to have a little bit
Speaker:more sophisticated approach. And quantum. As I
Speaker:said, people always expected that the quantum computing
Speaker:contribution is only coming from the hardware.
Speaker:What we learned over the years. No, it's also
Speaker:coming from the way that the new way of
Speaker:thinking the problem, we look at it differently. We're
Speaker:solving now a network of
Speaker:nodes with branches, different vices, different
Speaker:coupling. I see what you mean.
Speaker:So quantum inspired algorithms also play into this.
Speaker:In fact, in fact, I believe
Speaker:now the GOE Office
Speaker:of Science, at least they showed in the last presentation I attended
Speaker:that they are prioritizing now quantum inspired optimization,
Speaker:then hybrid quantum computing, then quantum computing,
Speaker:then the actual algorithms. So this, this is the first time I saw
Speaker:it. In fact I took a picture of it. I was so excited to see
Speaker:that they kind of got the message in a way.
Speaker:And, and, and as I said,
Speaker:you need to, you need people to invest in the quantum hardware. You need people
Speaker:to work on developing the machines and which is a long term
Speaker:kind of things. But you need also to be ready by
Speaker:getting a community of quantum engineers developing new
Speaker:applications. And the main motivation is
Speaker:it's not, we're not just building the application
Speaker:for, to be used when the quantum computers we know we
Speaker:can use it. And they are actually offering us an advantage today.
Speaker:Right. And even more in the future when the quantum
Speaker:hardware will be right. So
Speaker:this, this Is this is. So this
Speaker:is honestly stepping back a little bit out of the hype
Speaker:that people talk with a quantum and say
Speaker:to some extent, okay, in the next year or two or three, we're getting a
Speaker:quantum hardware. No, we don't know that. But we
Speaker:can actually do something useful. We can
Speaker:rethink our problems, we can rethink our algorithms and have
Speaker:an impact today. And also we will saving time
Speaker:by bridging and connecting some engineering problems like the one
Speaker:we are doing at Qubit, engineering energy problems that people
Speaker:never thought that we can actually cast them
Speaker:and project them into
Speaker:a formula like an anon one that we. So if you ask me
Speaker:what we do or core expertise is in the quantum
Speaker:formulation of the problem, this combinatorial optimization, which
Speaker:involves a significant domain expertise, you need
Speaker:to understand really well the application. You need also to understand
Speaker:how to build your quantum formulation of your problem.
Speaker:You know, so of course there's a debate. Say you're
Speaker:running it on classical systems, why you want to call it.
Speaker:I would say yes, it's running today on a classical systems. It's generating
Speaker:better results than, you know, the
Speaker:classical approaches that been developed for the last two, three
Speaker:decades. But also it can run on a quantum
Speaker:computer, if you give me one now. And you will not be
Speaker:able to match the results that I would get out of it.
Speaker:Interesting.
Speaker:Very interesting.
Speaker:Okay, so let me ask you this. Looking further out, let's say
Speaker:10 to 15 years from now, what's one moonshot
Speaker:application of quantum computing that
Speaker:you personally find the most exciting or transformative?
Speaker:Even if it seems speculative today,
Speaker:what fundamental breakthroughs would be required to make that a
Speaker:reality?
Speaker:So that's a, that's of course very good and very
Speaker:hard questions, but I'll, I'll try. Yes,
Speaker:I believe our
Speaker:next challenge is to
Speaker:understand how we can
Speaker:connect classical computers with
Speaker:quantum computers. How can we divide? So this is a more
Speaker:general kind of concept in the sense that I think hybrid quantum
Speaker:computing will be our next challenge for the next 10
Speaker:to 15 years. And in fact we see it
Speaker:as a continuation of developing
Speaker:applications and running quantum applications on a
Speaker:simulant. So the simulator right now is
Speaker:limited to CPU soon, once we
Speaker:have a better idea how to incorporate
Speaker:part of the calculation on the quantum
Speaker:while running it on this, on the, on the classical system. That's going to be
Speaker:the next. That's the next. That, that will have a very
Speaker:serious impact. In fact, in the future
Speaker:it's not going to be purely
Speaker:quantum. Even in theory age, when we have a very good Computer. I
Speaker:believe this idea of running
Speaker:classical and quantum computer at the same time is,
Speaker:is the winning course. We're not going to
Speaker:be able, we need to even rethink the
Speaker:problem now even more in the sense that
Speaker:where and how to connect classical and quantum computer when
Speaker:it comes to our optimizations now
Speaker:for the applications and the use cases,
Speaker:this is what,
Speaker:in 10, 15 years, I think whatever applications
Speaker:we are doing today, whatever use cases we are developing
Speaker:today, will continue and will get even better.
Speaker:And that's why we need to start now.
Speaker:Actually, not to interrupt you, but like, I think
Speaker:I want to click on starting now, like the importance of starting now because I
Speaker:think there's a lot of people and you're a trained physicist, right?
Speaker:And you even said like, you know, you're not primarily an engineer.
Speaker:So what could people who are not physicists do, like
Speaker:software engineers, AI engineers?
Speaker:Because I think that's really. One of the
Speaker:people asked me about this a lot, like what do I think about what they
Speaker:should do about quantum computing? I was like, well one, if you're in the C
Speaker:suite or the corner office, you should really start thinking about
Speaker:being ready for post quantum encryption, right? That's kind of the
Speaker:first thing, right? I used to be an emt, right. And the first thing is
Speaker:you remove the body from the burning vehicle
Speaker:when you start treating it. Right. But I think the second thing is
Speaker:in terms of career projections, I tell people, just get
Speaker:used to it, right? Just get used to the content
Speaker:concepts, right? Get ready. Because a lot of
Speaker:what traditional computer science people, myself
Speaker:included, we kind of have to unlearn what we've learned in a
Speaker:very real way. It's not that I have to throw
Speaker:out everything, but I kind of have to stop and think
Speaker:a little differently. Am I, am I on target with that? Am I off
Speaker:base? What do you think? I, I would say we are,
Speaker:we're going or we're moving forward by being a little bit more
Speaker:interdisciplinary and to some
Speaker:extent complementary, right. I, I
Speaker:think every different kind of engineer,
Speaker:they build certain way of reasoning and they are used to
Speaker:some kind of input, some kind of output and, and
Speaker:a process in the middle. Right now
Speaker:you're, you're talking about a different dynamics,
Speaker:a different, slightly different engineering, quantum engineering.
Speaker:So you need to be comfortable a little bit
Speaker:understanding the dynamics of. And
Speaker:I wouldn't say throw, absolutely not, but
Speaker:it's more adding on top of it. But
Speaker:you could be a computer science and you, you have, you have a
Speaker:background and you have a good, clear understanding of
Speaker:how to write programs or softwares in
Speaker:classical way. Now you need to learn some new skills when it comes
Speaker:to. And again, I don't think
Speaker:moving forward. What, what,
Speaker:what the way I see that the workforce will be, we
Speaker:will need to be able to build teams that
Speaker:are complementary. We're not expecting one
Speaker:person to know everything or to totally go
Speaker:from computer science to quantum computing,
Speaker:but we want him to be able to work with quantum
Speaker:physicists, to connect the dots and to
Speaker:basically, you know,
Speaker:have that flexibility and that of communicating with, with
Speaker:other colleagues, doing that and, and using their language and,
Speaker:and so on and even building something together with them.
Speaker:That's, that's the idea. So we are moving
Speaker:slowly towards an interdisciplinary kind of team set
Speaker:where the engineering is getting. And of course it
Speaker:depends on the application, it depends on what you're building, but
Speaker:it's getting more and more interwind and
Speaker:you need collective efforts. You know,
Speaker:even, even computer science or in software engineering, you have people say
Speaker:hey, I'm a front end developer. Hey I'm a back end developer. I'm,
Speaker:you know, I'm full stack. Right, here we go.
Speaker:So, so, so I think, I think this way. So I don't, I don't see
Speaker:a problem. I don't see it as a, as a challenge. Oh, you need to
Speaker:shift, you need to unlearn. Absolutely not. No, you need to continue
Speaker:and build on top of it. And I don't think even there is this
Speaker:concept of unlearning anything. I think we only can keep learning something.
Speaker:Right. Maybe the better way to phrase it is drop assumptions.
Speaker:Yeah. You know, so,
Speaker:so, so let me, let me bring. So I know this is, this is me,
Speaker:this is two website but let me, let me put this.
Speaker:I think there are. As we are, we're moving
Speaker:forward. The quantum industry
Speaker:is getting better at identifying its main challenge.
Speaker:It's getting better at understanding what use cases
Speaker:we can build, what kind of skill you need in fact
Speaker:for what we do, optimization. And you know, have
Speaker:to be careful right now even because when we
Speaker:say quantum optimization, I mean as I said, the debate whether
Speaker:you're running on a quantum computer. Yes, we did run on the quantum. And the
Speaker:leader by the way. Yes, we, we. I love, as a physicist, I
Speaker:loved running on actual quantum machine because you're
Speaker:you. Especially when you have access to the different knobs and, and you
Speaker:see how the output is changing and how you.
Speaker:It's very exciting. But now
Speaker:what I'm trying to, if there is a. The message I want to say is
Speaker:that we're not.
Speaker:We need to have combination of the skills
Speaker:when it comes to the application, the domain expertise and you need to have that
Speaker:quantum. So having it in one person, sometimes it's hard.
Speaker:But working in a group, in a team, that's where you can build
Speaker:something. In fact, that's for, for our team, that was the
Speaker:reason we started working the energy space because it's physics and we understand the
Speaker:physics and then we have the background in the quantum computing, then we can solve
Speaker:the problem. There is a, there is. I mean let's, let's
Speaker:say, let's, let's point out the elephant. I mean quantum optimization now the
Speaker:financial market, all the portfolio optimization effort that
Speaker:a lot of companies are trying to solve this problem. And one of
Speaker:the main challenges is that you all, you need one guy who is
Speaker:really experts and the actual problem in finance and
Speaker:understanding how the market goes and what parameters
Speaker:really have influence versus others and
Speaker:you need to have someone who can formulate that problem and
Speaker:so on. So combining these two
Speaker:expertise is I think the way for a successful
Speaker:development of the solution.
Speaker:Of course, what, what happens here is that either you have people
Speaker:who've been doing this the classical way, they're trying now to understand the
Speaker:quantum computing and trying to implement what they learned there, or
Speaker:the other way you have quantum computing
Speaker:experts who trying to understand more the finance and so on. At
Speaker:the end of the day, what you will end up doing, you'll end up doing
Speaker:working with teams
Speaker:made up or of different skills and they need to be able to
Speaker:communicate and collaborate
Speaker:and to. To solve the problem.
Speaker:Interesting.
Speaker:So what would be your. I'm sorry Candice, go ahead. No, I've hogged the mic
Speaker:the whole time. I genuinely. No, I genuinely did have something to say. I just
Speaker:absorbing. Please continue. Go ahead. What's your
Speaker:advice for people today that are in school,
Speaker:whether they're in physics, whether they're in engineering, whether they're in compi,
Speaker:marketing, etc. Like what, what would be
Speaker:your advice to someone who wants to
Speaker:get into
Speaker:get ready for the quantum shift.
Speaker:You know like you call it, it's a quantum shift.
Speaker:It's. It's moving fast, it's
Speaker:changing depending on the,
Speaker:you know, the interest and so on. I
Speaker:think the, the idea of, I
Speaker:think what the most valuable in this evolving
Speaker:time because we're talking about things that are changing
Speaker:every day, whether it's algorithm, whether it's hardware, whether
Speaker:it's technology and so on. I would say the,
Speaker:the best thing I would do is to
Speaker:work join any team
Speaker:that can offer the opportunity of looking at
Speaker:quantum technology from different perspectives,
Speaker:whether from the algorithm side, whether from the, the
Speaker:hardware side. Doesn't mean you need to work on both,
Speaker:but you have that, that possibility of interacting.
Speaker:I think that would be the best when it comes to building the
Speaker:actual quantum machines in the future. So the ability to see you're not
Speaker:just focused on the hardware itself, but also on the interface,
Speaker:connecting the hardware and communicating. Right.
Speaker:On the application side,
Speaker:I mean, there are, the application is. All
Speaker:applications are moving towards quantum computing or
Speaker:quantum. Of this new way of doing hybrid quantum computing in the
Speaker:future and having a better understanding
Speaker:of how we are building these quantum algorithms will be
Speaker:a huge plus. It will be, it will be as important as
Speaker:learning your, you know, analysis and
Speaker:algebra to solve some of your
Speaker:engineering problems. That's, that's, that's how we are going. That's what we are
Speaker:moving forward. So it will be a tool. You need to
Speaker:understand it, get comfortable with it. And of
Speaker:course you need to understand the application that you're developing. And
Speaker:so it's so, so having that, that, that
Speaker:one answer, I don't think it's an easy, it's, it's possible.
Speaker:But for any fresh
Speaker:engineer, I would say, for any young engineer, I would say
Speaker:try to understand your, your application as much as possible and try to
Speaker:think of quantum algorithms, quantum optimization, quantum computing
Speaker:as an important tool that you need now to
Speaker:master. And you will use it. Because
Speaker:think about it. In the future, all of these quantum computing
Speaker:companies, when their machine are ready,
Speaker:they will say, okay, here we go. Other machines, go ahead
Speaker:and use them. You can do so much. You need to be ready by then.
Speaker:You have the software, you have the application. You understand how can you can
Speaker:run your application, your problem on the left machine,
Speaker:you know, so
Speaker:it's, it's very, it's very dynamic.
Speaker:Interesting.
Speaker:We're almost at time and any
Speaker:other recommendations you would give or. Candace, do you have a question?
Speaker:You know, he gave advice to our, to our listeners on what they should
Speaker:think about considering and how they need to get involved. That's always
Speaker:usually the basis of my questions that I like to ask.
Speaker:I asked him for his thoughts on the future as well. So
Speaker:I'm going to say right now I feel like we've gotten a lot of
Speaker:great advice and information, so I'm going to say no.
Speaker:Do you have anything that you'd like to ask right now? I, I mean,
Speaker:I, I asked all the questions. I mean, we could probably go on for another
Speaker:couple hours, but you Know, but, but I think it's interesting to get,
Speaker:you know, you've been in, you know, if you looking at your resume on LinkedIn
Speaker:and whatnot, like you've been doing quantum or quantum networking for quite some time.
Speaker:So it's good to get your perspective which I think is probably been the most,
Speaker:one, some of the, one of the most grounded conversations we have. Like you know,
Speaker:this is, you know, don't get, you know,
Speaker:it's very grounded, right, because like, you know, it's the boring stuff. Windmill arrangement, right.
Speaker:Very critical. Right. These windmill farms are massive. They're
Speaker:not insignificant amounts of money are being put on the line. But it helps you
Speaker:can get the most out of it. And I think that's really,
Speaker:you know, it's the optimization problems, right. It's not
Speaker:that are going to really, I think make the most waves for
Speaker:business and you know, those are not going to be
Speaker:glamorous, cure cancer, figure out protein folding,
Speaker:photosynthesis and all that like sort of thing and optimize that. But I mean
Speaker:those, those types of problems I think are going to be crucial
Speaker:towards solving a lot of these intractable problems.
Speaker:Correct the learning part of it absolutely. What we are really.
Speaker:Yes, the problem may sound boring when you think of
Speaker:new drug and discovery, but the, the basis
Speaker:and the learning is actually helping us slowly getting into
Speaker:a way better, you know, much better understanding of
Speaker:how things work and what we need to do better
Speaker:and so on. And just like we did, we, we started working
Speaker:on wind for the last, now over the last couple of years we've been
Speaker:working on grid transferring that knowledge, the idea
Speaker:of the ability to solve these complex problems
Speaker:and so on. And I think, and
Speaker:I think this is, this is the. Like you said, maybe, maybe
Speaker:you know, it's first these are problems we need to solve that difficult
Speaker:today, especially with the grid. So what happens and the blackout happens in,
Speaker:in Spain recently and in Greece and southern France
Speaker:and, and we're started. And maybe I should say one, one
Speaker:thing about this. You know, one of the biggest machines we've
Speaker:built as humans is the electric power grid infrastructure.
Speaker:It's huge, it's complex and we are reaching a point and
Speaker:we kept growing it. Every year, we kept growing
Speaker:it and we reached the point today that
Speaker:we cannot manage it using even our supercomputers.
Speaker:This is a serious problem to them. We built a machine
Speaker:that we are barely maintaining using
Speaker:classical. And we need to rethink our tools. We are, we need to
Speaker:rethink the way we manage it and we solve it
Speaker:and right, here we go. These
Speaker:techniques, this. This different way of looking at problems, the way
Speaker:we're navigating the. The space of possibilities. Like I said, it's
Speaker:a bunch of switches. You need to know which one. You're not going to just
Speaker:turn on and off randomly. Absolutely not. Right. So you need to be
Speaker:a little bit more sophisticated. And that's what this new way
Speaker:of thinking of quantum optimization and the way you were dealing it and
Speaker:solving it will be the answer for that.
Speaker:Interesting. That's awesome.
Speaker:So we want to be respectful of your time and thanks for coming
Speaker:on the show. And where can folks find out more about you and your company?
Speaker:Yeah, so
Speaker:cubatengineering.com that's our website. Please
Speaker:reach out. You can find me on LinkedIn too. We're
Speaker:happy to answer any questions, collaborate,
Speaker:connect. And yeah,
Speaker:excellent. Fantastic. And we'll let our AI
Speaker:finish the show. And there you have it. Quantum optimization,
Speaker:wind turbines, power grids, and a healthy dose of
Speaker:reality From Maruan Salhi. We've journeyed from
Speaker:theoretical physics to practical engineering without so much as
Speaker:collapsing a single wave function. If
Speaker:today's conversation has shown us anything, it's that
Speaker:quantum isn't just about the future, it's about rethinking the present.
Speaker:Whether you're a physicist, an engineer, or someone who
Speaker:just enjoys saying quantum at dinner parties, there's a place
Speaker:for you in this evolving landscape. Be sure to visit
Speaker:Quite Engineering. Come to learn more about the work
Speaker:Maruan and his team are doing. And as always, if you
Speaker:enjoyed the show, subscribe, leave a review or
Speaker:shout superposition into the void. We'll hear it. Until
Speaker:next time, stay curious, stay coherent,
Speaker:and remember, in the quantum world, even boring can be
Speaker:revolutionary.