World Science Festival
Are quantum computers the game-changer they’re described to be, or is the promise of exponential speedup overblown? Join pioneer Seth Lloyd and Brian Greene as they discuss how the fundamental principles of quantum mechanics are leveraged by quantum computers, and the algorithmic challenges in achieving the promised exponential power.
This program is part of the Big Ideas series, supported by the John Templeton Foundation.
Participant: Seth Lloyd
Moderator: Brian Greene
00:00 – Introduction
02:05 – Participant Introduction
03:12 – Basics of Quantum Mechanics: Double-Slit Experiment
10:31 – Basics of Quantum Mechanics: Wave Particle Duality
18:22 – Basics of Quantum Computation: Particle Spin
24:46 – Basics of Quantum Computing: Quantum vs. Classical
30:20 – Quantum Computers: State of Play
43:38 – Credits
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Source
Summary: hype
where should I park a decent sum of money in he quantum space, time horizon 20yrs +
All this is getting interesting and it's coming at a pace that human have no idea how fast this is going to be it's going to be an interesting future!!!
There's nothing weird about the double slits experiment. The interference pattern is a result of the Compton effect. It"s all about the scattering of light.
Hi
willow is only 105 qubits imagine 300 qubits
Love the enthusiasm. Absolutely no details on what this stuff can do besides break encryptions, though. I think scientists globally are saying "We don't know what it'll be good for or really how it works but, you know….science"
Damn, Brian…couldn't you have been courteous enough to pause the filming and discretely let Seth know he had a booger in his right nostril? Some friend.
I view this video both positively and negatively at the same time if thats possible.
I have the answer that can solve all the issues with Quantum Computing…they just need to couple the results of the regular double slit experiment with a second one, with the second one having the slits oriented horizontally instead of vertically, then just average the results out! And you can easily verify the results are correct by doing it again with the slits either on the positive or negative diagonal. I hear the phone ringing, and i think i should answer it because it just may be someone from Sweden calling!
What's interesting to me is the difference between probability theory vs; the improbility of nature itself.
a lot of layers to this interaction lol
Wake me when they have a true public demonstration. The last 30 years yielded nothing.
The reason quantum computers look like movie props,… is because theyARE movie props.
The only thing that quantum computation is going to lay to waste is people's investment portfolios.
Seth reminds me of that awkward scientist in the Independence Day movie
So, you have to look like a mad scientist to understand this stuff?
Happy New Year
too much of Brian Greene and not enough Seth Lloyd. looks like a kids show. you're interviewing a celebrity scientist, don't interrupt him for God's sake
This is complete nonsense and is just another example of quantum computing hype. The vast number of *potential* states of quantum bits is totally meaningless to computation. The only factor that matters is the numbers of switch outcomes (in classical computing 1s and 0s). So the only objective that matters in quantum computing is to increase the current two outcomes (switch on -1- or switch off -0-) to multiple outcomes (eg. switch on -1-, switch off -0-, spin up -a-, spin down -b-, spin both -c-). Triangulate these with local entanglement and other quantum behaviors, and while you get a lot more potential outcomes, you don't remotely get the massive number of possibilities claimed in the video.
Still a long way to go it is unreliable at all.
They make it so fun to hear
Recent quantum computing stock market is absolutely misguided by Google chip development, it will take 15+ years to develop commercial base quantum computers. This is a dead investment. Invest will loose money for sure.
If the quantum computing use a time base snapshot to see how the wave collapse we could use the same principle to a bunch um pendulums that alternate between one side or the other being that 0 or 1 and use a time base snapshot to see which one It will be at that time.
Thesis on Fision:
Opposite of Fusion. Hot & Cold…Explode & Implode…Create a planet if you have a core using magnetic fields to attract space dust or possibly even create a black hole
Quantum Mechanics Theory:
One mother with 50 supers
No more Governors
Same story over and over again. Nothing changed. Nothing interesting about this whatsoever.
This guy didn't take many "filler" classes, did he?
Smart dude. Correction…dudes.
Thank you, Brian Greene! ✌️🤓
30:50 Thus, the truth comes out. A quantum computer that gives you all answers when you cannot even look at those answers, gives you literally NO ANSWER.
I have said this from the very beginning, and there is not even a single doubt that I am absolutely correct.
You are looking at a gigantic stupid scam.
Mark my words and screenshot this. Alternately, if a "breakthrough" happens and you get "all answers" even instantly, YOU STILL HAVE NO ANSWER AT ALL.
This didn’t age well 😂
Hansel is so hot right now
I'm 16:00 in and my Good Enough Diploma taught me all this. 16:00 minutes to review a 100 year old experiment that we've made 0 progress on.. shut up and calculate beotch's.
2 guys talking about the most mystical forces in nature, but a New York – Boston bball rivalry dig still enters the picture.
From this video I learned that quamtum computers have no practical use other than make some rich guys even richer with stock speculation.
32:17 reminds me of the wisdom of crowds. im just an idiot who learned about it from a joe abercrombie book title, but it seems like a bit of a parallel. a large group of humans guessing at a number is a kind of smelly computer, giving enough data that tends towards the correct result
When Science becomes Spiritual 🫥
I still don't get it.
It's a privilage to listen to you two try to help us all think.
Doc Brown? 😄
Was hoping throughout the video, that Brain should be decisive about his specs, either put it on or remove them🤔, JK😁😁😁😁
A company called Wimi Hollogram has today announced, that they have developed FPGA-Based Digital Quantum Computer Verification Technology.
This technology offers a completely new approach to quantum computing by using digital quantum bits, or discrete finite state machines. Not only does this mark a new milestone in the field of quantum computing, but it also lays a solid foundation for the future realization and application of quantum computers.
Can someone dumb it way down for me and explain what that means!?
Artificial Intelligence governed Quantum Computing technologies to manipulate Quantum Computing Nuclear Energy, to be the future of tomorrow.
You lost me when you started stating evolutionary theory as fact. Dont care about anything else you have to say when your speculating with wild claims of evolution.
Host should let the gues speak. Rather than showing off that he had lot of vacab for analogies
Brian can you give my comment some time and read it, it's a consideration based on that space might be a 10D fluid like which is charged, and the total charge may vary but i assumed it's 0, and ask chatGPT for the implications of this (one notable take home message is that higgs field is like the viscosity example which align with the type fluid hypothesis):
let's consider that the universe is made of 10 physical dimension, and it's a type of fluid, like a qunatum fluid, which is charged but the total charge cancel and it's 0, and the virtuals particles that come in and out of existance are like the molecule of water moving in a 10Dimesional ocean or fluid like
ChatGPT said:
ChatGPT
The concept of the universe as a quantum fluid in a higher-dimensional space is an intriguing and speculative framework for interpreting quantum mechanics and general relativity. Let's explore the implications and mechanics of such a model, based on your description of a 10-dimensional charged quantum fluid where the net charge is zero, and virtual particles behave like "molecules" of this fluid.
Core Premises of the Model
10 Physical Dimensions:
If the universe has 10 dimensions, it aligns with certain string theories (e.g., superstring theory), where additional spatial dimensions are compactified or hidden from our perception.
These extra dimensions could provide a "background structure" for the quantum fluid.
Fluid-Like Universe:
The universe behaves as a quantum fluid, implying properties like flow, turbulence, and emergent behavior at different scales.
Virtual Particles as Molecules: Virtual particles are manifestations of local fluctuations in the fluid, much like molecules moving in water.
The zero total charge suggests a perfect symmetry or equilibrium at the global scale, even though locally, fluctuations create charged regions (analogous to polar molecules in water).
Quantum Behavior in a Fluid:
This fluid is quantum mechanical, meaning it obeys wave-particle duality, superposition, and uncertainty principles.
Virtual particles emerge from fluctuations of this quantum fluid, representing the "quantum foam" of spacetime.
What Happens in This Model?
This conceptualization offers an interesting lens to interpret several physical phenomena. Here are some implications:
1. Vacuum Fluctuations as Fluid Dynamics
In quantum mechanics, vacuum fluctuations describe the temporary emergence of virtual particles due to Heisenberg’s uncertainty principle. In your fluid analogy:
These fluctuations are localized disturbances or "ripples" in the 10D quantum fluid.
Virtual particles arise as "vortices," "waves," or "turbulent flows" of this fluid, moving energy and charge locally.
Just as water molecules are constantly in motion, this fluid might have inherent "quantum turbulence," where disturbances propagate as ripples or solitons through the 10D structure.
2. Emergence of Particles and Fields
Particles, fields, and forces in this fluid model could be understood as emergent phenomena:
Massive Particles: Localized, stable disturbances in the fluid, like solitons or vortices.
Massless Particles (e.g., Photons): Propagating waves or oscillations in the fluid, akin to sound waves or light in a medium.
Higgs Field: A background property of the fluid that gives rise to mass when particles interact with it, analogous to how viscosity in a fluid resists motion.
This framework is reminiscent of superfluidity in condensed matter physics, where emergent collective behavior at quantum scales mirrors phenomena seen in the universe.
3. Charge Cancellation
The net zero charge in the fluid implies a deep symmetry:
At the quantum level, local fluctuations break this symmetry, giving rise to regions of positive and negative charge.
These local imbalances correspond to the appearance of particles (e.g., electron-positron pairs) that annihilate quickly, restoring equilibrium.
This is similar to the Dirac sea idea, where the vacuum is filled with negative energy states, and disturbances create observable particles and antiparticles.
4. Gravity and General Relativity
If spacetime itself is a 10D quantum fluid, then gravity could be understood as a macroscopic effect of the fluid’s dynamics:
Curvature of spacetime arises from the flow and deformation of the quantum fluid around mass and energy.
Black holes might be interpreted as quantum vortices in this fluid, with the singularity corresponding to a breakdown in the fluid's structure.
This interpretation aligns with some efforts to describe gravity as an emergent phenomenon, such as Erik Verlinde’s entropic gravity or the notion of spacetime as an emergent property of quantum entanglement.
5. Higher-Dimensional Turbulence
The presence of extra dimensions opens the possibility of complex, higher-dimensional turbulence:
Disturbances in the fluid could propagate not just in the familiar 4D spacetime but also through the hidden dimensions.
This might explain phenomena like dark matter or dark energy, which could be the result of energy flows or "eddies" in the unseen dimensions affecting the visible universe.
Potential Consequences
A. Black Holes and the Fluid
Inside a black hole, the quantum fluid could become extremely dense or turbulent, leading to localized breakdowns in the 10D structure.
The singularity might represent a "pinch point" in the fluid, where its properties transition into a new phase or dimension.
B. Quantum Foam and the Fluid
At the Planck scale, where spacetime is thought to become "foamy," this foam could be seen as the smallest-scale turbulence of the fluid.
The creation and annihilation of virtual particles might be turbulence dissipating energy in the fluid.
C. Vacuum Decay
If the fluid is metastable, disturbances could trigger a phase transition in the fluid, analogous to boiling water. This could lead to a catastrophic change in the universe’s structure (e.g., vacuum decay).
D. Role of the Higgs Field
The Higgs field could act as a viscosity-like property of the fluid, regulating the behavior of virtual particles and stabilizing the emergent mass-energy balance.
So, we could potentially have all the answers to everything all at once, but just not be able to comprehend which question goes with which answer…probably…perhaps. That's a good stream to float on ❤
Slit 💩
Draco Malfoy's Dad explaining Quantum is something else