This is one of the absolute best videos on quantum tech that I have ever seen. Morello explains it so thoroughly and comprehensibly that it is a pure pleasure to listen to, and Dave supplements with really good questions that tie it all together. I'm just a "simple" electronics engineer, with an MsC from a long time ago. Today I work with system architecture in cellular radio systems... but, before I started my engineering career, I was admitted to the Niels Bohr Institute in Copenhagen. Although I chose to jump from Niels Bohr to become an engineer, I have maintained an interest in quantum mechanics, and this video has really boosted my positive spin in that direction. Brilliant video - Thnak's to Andrea and David.
Young children who on a warm day get an ice-cream from their mother say the same things like you. Their mother is the sweetest of them all, haha. Do you want another ice-cream, Torben?
Wow never expected to have even a small amount of understanding of quantum computing but Prof Morello explains thing so well i actually feel like i understand, wish i had a teacher like him id have lived at school.
Finally a video that describes actually how it is interfaced and interacted with in a understandable way :) I have to agree, Professor Morello is a joy to listen to.
I remember watching a video of his almost a decade ago with veritassium talking about computers. It's great seeing this video recomended to me and that this guy is still rocking
Great video! I'm / was also a cryogenic physicist, @ < 4.2K level. Thermometry at those temperatures is also my specialist area. Really beautiful cryostat and experimental setup (Cu and Au). Once, I created superfluid He(4) by pumping it down to ~1.4K, if I remember correctly... inside a double glass dewar with window slits..so I could see the vanishing of any boiling bubbles. It was used to check the calibration of a Si diode thermometer.
You got any links to good papers to read on cryogenic diode sensors calibration? I got some legit diodes from Scientific Instruments but don't have any calibration data on them. Plan to use them for 4K cryocooler based cryostat. Don't need crazy accuracy, just something within +/-0.2K would be good enough. So far my best idea is to actually buy calibrated sensor from Lakeshore and use it as "reference" to determine V/T curve of other diodes..
Awesome, thanks Dave! Can we see a part (maybe in future?) where all cryogenic parts are discussed. Like thermal filters to reduce temperature oscillation from pulse tube, how they handle helium-3 recovery/cycling and thermal switches operation? Maybe some cryogenic thermometers calibration charts/data demo? I have very similar Lakeshore 370 and plan to run own 4K head next year, so it would be very educational to see how real experts handle and build cold systems :) Also side question, do they have JVS? :)
Fantastic video. I wanted to write a complimentary, hopefully original comment but with all the very eloquent, overwhelmingly positive comments below, I don't think I could add much. Morello's knowledge is extraordinary. Thank you for this.
0:04 Trying to assign binary to a qubit for its given state in a known comparative field, to then equate a voltage to the wave function of the qubit as it flips state and how that state flip would interact with it quantum linked counterpart?? Field theory state flip interaction, S matrix, Feynman propagators all come to mind.
Great interview. Should definitely get more likes and comments, thou. Professor Morello has a great gift explaining complicated phenomena in approachable and easy to understand way.
i dont even know what a picowatt is, but this is so interesting and i can actually understand a bit in general because of such a good explanation, thanks for this and hope u guys keep uploading and discovering new quantum stuff
Excellent Dave! need more of these!... ...and thanks Andrea for your time and the awesome insight! ...the whiteboard... hmm..looks like encoding traditional bit truth table onto the qbit matrix...using frequencies of the spin to determine the bits...
1:02:37 but wouldn't that reduce it to a binary system? Let's say the superposition is 31.42%, you would need to measure it very often to narrow down on that number. Also couldn't we just define an array of like 100bits the same as a qbit that has 100^x possible outcomes? Like where is the quantum computer faster? by being able to use different frequencies in parallel? Or can it be entangled with other qbits and only the result has to be measured?
Thank you for this and the other great videos! They are very concise and explained in ways where one such as I can understand. Making this information accessible and understandable to the young masses is doing the world a favor.
The Quantum Physics used here is called a Meissner London Effect, a way of reaching suspension of magnetic flux and causing superconduction and suspended animation of the Control Unit of the computer, putting the electrons in superposition, where 0=1. They use liquid helium to teach the London penetration depth.
That was fascinating. I have read some on quantum computing and in a sort of ,kinda - hand wavey got the gist of it. This really answered a bunch of questions for me. The relation to the macro electronics scale that I do grasp give me a much better understanding. It clicked a lot more. The hardware is really interesting and the length they go to avoid or create thermal shorts is impressive. I'd wondered how the "relay" in a superconductor magnet works, now I know. Professor Morello: Thank you! That was a thoroughly enjoyable and educational hour and a half. Thanks for letting Dave come down and poke around that beautiful device!
This video is about the hardware, but what I think is also very interesting is: how do you program the quantum computer to calculate the result that you want? It seems that all experimental quantum computers until now are much like analog computers: you have to construct the computer to make the calculation you want to do. The "stored program digital computer" achieves most of its usefulness from the fact the user can tell it what to do, and shortly thereafter can tell it to do something else. Will that ever be possible with a quantum computer? Will we have to build a new computer for every problem? Will the quantum computer ever solve a problem we defined beforehand, instead of the problem that is convenient to solve?
Using some lattice setup for a quantum entanglement based apparatus to make some computations. Computing probabilities in the lattice, and producing some result. Is it a clock, not sure?
This was very interesting to watch. The physical problems you encounter at working on that particle level are mind blowing. Btw, did your microphone not work?
The NOT operation is accomplished by providing a selected radio frequency to the electron, so that independently of the spin it will start to rotate at a rate dependent on the wave amplitude, right? Are you researching other type of gates? What about making two qbits interact?
8:55 So then... in other words: "We bang on things until we think it's 0.01 degrees and verify our measurements against previously banged-on references apparatuses."...
So making the magnetic field in a superconductor means the tech introduces the current which keeps running till magnetic quenching occures. We in the normal world call this the curie temperature of the field before loss. He calls it quenching which is a runnaway process. Like a nuclear reactor going critical. Keeping it critical means runnaway is not going to happen but statistically stable is not a surface component but according to density and reflectivity and nuclear poisoning. Same as temperature poisoning of an mri machine. Dave from eev never ceases to amaze me with having such beautiful children and following Morello in understanding how quantum machines work. Unable to make advances but helping us to understand the intricacies of quantumly approaching how reality itself is lightly organized.
Stages of learning: RUAC, Rote, understanding, application, correlation. Correlation is if you know the basics of an MRI then you know what he's explaining about...
Bottom left someone was drawing out (didn't actually count), but probably 32 bit binary--should have just typed Above it is bidirectional cyclic graph Above it looks like a grads notes on gate set tomography, super operator to shortcut finding probability of a density operator because it's trace preserving and you can Top right is notes on superconducting qubit Middle right someone ran a simulation, the theory didn't match their numerical results so back to the drawing board they go Bottom right someone was thinking about phase and frequency, maybe to entangle qubits? Drew out the bloch sphere and a complex unit circle(so euler's ident. is easily used)
If you combine it all together, you have a fully entangled graph of superconducting qubits that didn't match up algorithmically to theory after the signal was sent over a fiber optic line that had entangled states encoded in frequency, amplitude, and phase. The quantum state tomography may have been in regards to optical microcombs, that's not fully clear but that's what I'd conjecture.
connect a multiple quantum computer increase the overall qubit count (combine with super computer )use that computational power to create a better chip !
45:01 "There are some numbers you need to remember like your date of birth. One is that one picoamp is 6.24 electrons per second." Lol. No it's not. It's, according to this video, 6240000 electrons per second. Not sure if this guy knows when he was born now because of this. Anyway, this dude is obviously smart and I'm pointing out a silly mistake, don't hate me. It's funny because in the same breath he says it's one of the few things that are super important like your birthday and then proceeds to have it wrong and that's funny. I shouldn't have to explain this stuff. Why am I explaining this stuff‽ Chilling effects, I guess.
If the classic computer is like a symphony Orchestra, then there's a Quantum Jazz Player doing interpretation on the fly, right in the middle and giving feedback in sync-duration. Fun learning by doing. Ie the inside-outside presence of probabilistic relative-timing ratio-rates Perspective Principle Universe makes this strategy of quantization oscillation the equivalent of putting an ultra Computational design inside the pseudo random chaos of Totality. WYSIWYG, you can have your cake and eat it too, that's fundamental elemental e-Pi-i sync-duration connectivity function in pure-math self-defining modulation.., not a pretty picture, unless you are an Astronomical Observer. If you want to compute a particular fundamental future, design and build it to your best capabilities, otherwise we just Observe and catalogue the results of shaping-shifting.
This is one of the absolute best videos on quantum tech that I have ever seen. Morello explains it so thoroughly and comprehensibly that it is a pure pleasure to listen to, and Dave supplements with really good questions that tie it all together. I'm just a "simple" electronics engineer, with an MsC from a long time ago. Today I work with system architecture in cellular radio systems... but, before I started my engineering career, I was admitted to the Niels Bohr Institute in Copenhagen. Although I chose to jump from Niels Bohr to become an engineer, I have maintained an interest in quantum mechanics, and this video has really boosted my positive spin in that direction.
Brilliant video - Thnak's to Andrea and David.
Young children who on a warm day get an ice-cream from their mother say the same things like you. Their mother is the sweetest of them all, haha. Do you want another ice-cream, Torben?
Well said. It is also nice to see the actual hardware/parts that comprise a quantum computer.
It's absolutely a joy to listen to Prof. Morello explain how things work. The education system needs more like him!
This is top notch content, I would love to see lectures from professor Morello, what an amazing work.
He has a few on YT on UNSW's channel, just FYI....currently in my saved list.
Wow never expected to have even a small amount of understanding of quantum computing but Prof Morello explains thing so well i actually feel like i understand, wish i had a teacher like him id have lived at school.
I can't believe how lucky we are to have access to such knowledge so fluidly. Thank you so much.
Finally a video that describes actually how it is interfaced and interacted with in a understandable way :) I have to agree, Professor Morello is a joy to listen to.
Andrea is so good at explaining things and keeping it soo interesting. Can't wait for part two.
Great vid. Prof Morello knows his stuff, I've seen him in a few vids over the years and he is great
I remember watching a video of his almost a decade ago with veritassium talking about computers. It's great seeing this video recomended to me and that this guy is still rocking
44:23 Have you ever experienced intercepting signals to the 40 G micro-waves?
Oh yes, I do daily.
NOTE: Just lame AI generated timestamps at present. I need time to go through and do them manually, there is just so much in this video!
Outstanding Dave, thank you for sharing this. I always enjoy listening to Andrea
You can clearly see the bright in his eyes... Such a great teacher/professional.
Awesome, Professor Morello! You are a G! In a Superposition! You are Blessed by Nature!
This happens whe someone -wants- and likes to teach ! Thank you for such an amazing video !!
Great video! I'm / was also a cryogenic physicist, @ < 4.2K level. Thermometry at those temperatures is also my specialist area.
Really beautiful cryostat and experimental setup (Cu and Au). Once, I created superfluid He(4) by pumping it down to ~1.4K, if I remember correctly... inside a double glass dewar with window slits..so I could see the vanishing of any boiling bubbles. It was used to check the calibration of a Si diode thermometer.
You got any links to good papers to read on cryogenic diode sensors calibration? I got some legit diodes from Scientific Instruments but don't have any calibration data on them. Plan to use them for 4K cryocooler based cryostat. Don't need crazy accuracy, just something within +/-0.2K would be good enough. So far my best idea is to actually buy calibrated sensor from Lakeshore and use it as "reference" to determine V/T curve of other diodes..
hell yeah!!! finally a follow up to the interview!!!!! Can't be more happy!
Took a while!
I saw Professor Morello first time in Veritasium a decade or so ago. Glad he's still on it!
Love it. The professor explain very nice, easy to follow, but still a load of info there.
Your last conversation was golden. This is the same. Thankyou for sharing your time and expertise.
I’m sorry, I’m 18 minutes in and this is absolutely F**king brilliant!!!!
Awesome, thanks Dave! Can we see a part (maybe in future?) where all cryogenic parts are discussed. Like thermal filters to reduce temperature oscillation from pulse tube, how they handle helium-3 recovery/cycling and thermal switches operation? Maybe some cryogenic thermometers calibration charts/data demo? I have very similar Lakeshore 370 and plan to run own 4K head next year, so it would be very educational to see how real experts handle and build cold systems :) Also side question, do they have JVS? :)
Fantastic video. I wanted to write a complimentary, hopefully original comment but with all the very eloquent, overwhelmingly positive comments below, I don't think I could add much. Morello's knowledge is extraordinary. Thank you for this.
Andrea Morello has explained this really well. Thanks!
HOW are the scientists able to isolate and manipulate 1 single atom and it's electron!?!? It *BOGGLES* my mind!!!
Great, great, great video.
Please more or these!
Fascinating from start to finish, this was amazing. Looking forward to the next part.
0:04 Trying to assign binary to a qubit for its given state in a known comparative field, to then equate a voltage to the wave function of the qubit as it flips state and how that state flip would interact with it quantum linked counterpart?? Field theory state flip interaction, S matrix, Feynman propagators all come to mind.
I remember watching an interview with Andrea Morello on your channel some years ago.
It’s brilliant how good this guy is at explaining the basics of what’s going on and how much fundamental ee factors into it.
Great interview. Should definitely get more likes and comments, thou. Professor Morello has a great gift explaining complicated phenomena in approachable and easy to understand way.
Every minute of and off-the-cuff question blows my mind on multiple levels. I wish I had seen this 20 years ago.
I learned more about this topic than ever. You guys were giving and asking the proper questions. Well done.
38:12 thanks for making this clear, I was really confused at first on how this is able to be meassured without collapsing it
i dont even know what a picowatt is, but this is so interesting and i can actually understand a bit in general because of such a good explanation, thanks for this and hope u guys keep uploading and discovering new quantum stuff
This is priceless! Thank you both for doing this.
I am here to learn how to build a quantum computer in my garage.
Excellent Dave! need more of these!... ...and thanks Andrea for your time and the awesome insight!
...the whiteboard... hmm..looks like encoding traditional bit truth table onto the qbit matrix...using frequencies of the spin to determine the bits...
1:02:37 but wouldn't that reduce it to a binary system? Let's say the superposition is 31.42%, you would need to measure it very often to narrow down on that number. Also couldn't we just define an array of like 100bits the same as a qbit that has 100^x possible outcomes? Like where is the quantum computer faster? by being able to use different frequencies in parallel? Or can it be entangled with other qbits and only the result has to be measured?
Great questions from Dave, and the Prof is so good at explaining!
Thank you for this and the other great videos! They are very concise and explained in ways where one such as I can understand. Making this information accessible and understandable to the young masses is doing the world a favor.
What a grab! Actually finding someone to thoroughly explain these steampunk-looking guts of quantum computers. Good on ya!
Amazing explanation.
Where’s part 2!!!!?!??? 😃
The Quantum Physics used here is called a Meissner London Effect, a way of reaching suspension of magnetic flux and causing superconduction and suspended animation of the Control Unit of the computer, putting the electrons in superposition, where 0=1. They use liquid helium to teach the London penetration depth.
awesome! My team collaborated with Dr. Morello back when I was with the quantum transport group at a national lab in the US a few years back.
That was fascinating. I have read some on quantum computing and in a sort of ,kinda - hand wavey got the gist of it. This really answered a bunch of questions for me. The relation to the macro electronics scale that I do grasp give me a much better understanding. It clicked a lot more. The hardware is really interesting and the length they go to avoid or create thermal shorts is impressive. I'd wondered how the "relay" in a superconductor magnet works, now I know. Professor Morello: Thank you! That was a thoroughly enjoyable and educational hour and a half. Thanks for letting Dave come down and poke around that beautiful device!
If you haven't seen the red couch video then I highly recommend it!
@@EEVdiscover Already added it to the list.
is Blue Fors the only option for making these diffusion refrigerators? Or is there alternatives?
Andrea has been a terrific quantum gatekeeper for over a decade. And he certainly looks the part.
This video is about the hardware, but what I think is also very interesting is: how do you program the quantum computer to calculate the result that you want?
It seems that all experimental quantum computers until now are much like analog computers: you have to construct the computer to make the calculation you want to do.
The "stored program digital computer" achieves most of its usefulness from the fact the user can tell it what to do, and shortly thereafter can tell it to do something else.
Will that ever be possible with a quantum computer? Will we have to build a new computer for every problem? Will the quantum computer ever solve a problem we defined beforehand, instead of the problem that is convenient to solve?
Excellent commentary. Thanks
Using some lattice setup for a quantum entanglement based apparatus to make some computations. Computing probabilities in the lattice, and producing some result. Is it a clock, not sure?
This was very interesting to watch. The physical problems you encounter at working on that particle level are mind blowing.
Btw, did your microphone not work?
My mic worked, but it's tricky to edit a multi cam and multi audio solution like this, so sometimes I didn't bother switching to my mic in the edit.
This is brilliant Dave. Nice 1 :)
are experiments repeated 30 times due to the central limit theorem? that the sample distribution approaches roughly normal at 30?
Super cool video, funny, informative and well made as always.
Could you attenuate frequency vibration using tension like a guitar string?
Hes back at what he was born to do best.
are the new discoveries on attosecond measurement helping to discover new stuff on quantum computer?
Nice point Commander Kean ;)
When do we get part 2?
The NOT operation is accomplished by providing a selected radio frequency to the electron, so that independently of the spin it will start to rotate at a rate dependent on the wave amplitude, right? Are you researching other type of gates? What about making two qbits interact?
I only understood about half of it but it was thoroughly interesting
8:55 So then... in other words: "We bang on things until we think it's 0.01 degrees and verify our measurements against previously banged-on references apparatuses."...
That whole aluminum frame apparatus reminds me of the painstaking efforts they made to isolate vibrations during the Michelson-Morley experiment
Absolutely fascinating! Great video
This guy sciences... Amazing!!!
Thanks to Dr/Mr Morello trying to explain in plain terms these Freezers computers
I soooooooooooo love this!!!
Just at the 1,5kOhm beeing 22k at 0.0 and I just had to say "Uau"
dr. Morello is great at explaining things!!!
Amazing stuff - on so many levels!
Fantastic stuff
I would like to say thank you for this 🙏🙏🙏🙏🙏🙏🙏🙏🙏
Do virtual particles cause noise in these devices?
If I was at uni in the area, I would definitely attend his lectures.
This professor has to simplify things like 100 times so our head does not blow off😀😀😀😂
Subbed, so good 😊😊😊❤
So making the magnetic field in a superconductor means the tech introduces the current which keeps running till magnetic quenching occures. We in the normal world call this the curie temperature of the field before loss. He calls it quenching which is a runnaway process. Like a nuclear reactor going critical. Keeping it critical means runnaway is not going to happen but statistically stable is not a surface component but according to density and reflectivity and nuclear poisoning. Same as temperature poisoning of an mri machine. Dave from eev never ceases to amaze me with having such beautiful children and following Morello in understanding how quantum machines work. Unable to make advances but helping us to understand the intricacies of quantumly approaching how reality itself is lightly organized.
When the part 2?
Stages of learning: RUAC, Rote, understanding, application, correlation. Correlation is if you know the basics of an MRI then you know what he's explaining about...
Looks like a way to share a photon between the quantum state and the observer without collapsing the the state.
Part 2! Part 2! Part 2! 🥲
Im looking to do masters in this domain. Applying for 2024 September courses. Im from VLSI, electronics background
Wish me luck
andrea is the bomb
Awesome 💥👏👏
Prof. Reminds me of Wolfgang wounder if he ever worked or studied with him
Dave should visit every major physics labs (like LIGO) and have these true intellectual conversations (rather than usual high level stuff).
Wife and kids...
this is fascinating
He's the epitome of genius
Love u both!
Thank you 👍
What a rockstar!
I wonder from where one can get all the knowledge needed to buil such a machine.
Bottom left someone was drawing out (didn't actually count), but probably 32 bit binary--should have just typed
Above it is bidirectional cyclic graph
Above it looks like a grads notes on gate set tomography, super operator to shortcut finding probability of a density operator because it's trace preserving and you can
Top right is notes on superconducting qubit
Middle right someone ran a simulation, the theory didn't match their numerical results so back to the drawing board they go
Bottom right someone was thinking about phase and frequency, maybe to entangle qubits? Drew out the bloch sphere and a complex unit circle(so euler's ident. is easily used)
If you combine it all together, you have a fully entangled graph of superconducting qubits that didn't match up algorithmically to theory after the signal was sent over a fiber optic line that had entangled states encoded in frequency, amplitude, and phase. The quantum state tomography may have been in regards to optical microcombs, that's not fully clear but that's what I'd conjecture.
connect a multiple quantum computer increase the overall qubit count (combine with super computer )use that computational power to create a better chip !
45:01 "There are some numbers you need to remember like your date of birth. One is that one picoamp is 6.24 electrons per second." Lol. No it's not. It's, according to this video, 6240000 electrons per second. Not sure if this guy knows when he was born now because of this.
Anyway, this dude is obviously smart and I'm pointing out a silly mistake, don't hate me. It's funny because in the same breath he says it's one of the few things that are super important like your birthday and then proceeds to have it wrong and that's funny.
I shouldn't have to explain this stuff. Why am I explaining this stuff‽ Chilling effects, I guess.
If the classic computer is like a symphony Orchestra, then there's a Quantum Jazz Player doing interpretation on the fly, right in the middle and giving feedback in sync-duration.
Fun learning by doing.
Ie the inside-outside presence of probabilistic relative-timing ratio-rates Perspective Principle Universe makes this strategy of quantization oscillation the equivalent of putting an ultra Computational design inside the pseudo random chaos of Totality. WYSIWYG, you can have your cake and eat it too, that's fundamental elemental e-Pi-i sync-duration connectivity function in pure-math self-defining modulation.., not a pretty picture, unless you are an Astronomical Observer.
If you want to compute a particular fundamental future, design and build it to your best capabilities, otherwise we just Observe and catalogue the results of shaping-shifting.
Nice surprise, in the middle of the night
It's been a while on EEVdiscover!
But what does it do ?
Wow !
Wow, 27 Ghz...
That's the coolest shirt I've ever seen!
4:50 Cryogenic dental floss!
Love the honesty: there is no quantum computer in the world. Yes thanks there are mostly experimental things for specific experimental purposes.