Google Attempts to Build Quantum Computer
- Thread starter Blackwell Stith
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There are cryptosystems that do not rely on integer factoring or the discrete logarithm problem, which are the two most common trapdoor one-way functions in use these days and which are vulnerable to Shor's algorithm; check out lattice-based cryptography for one of them if you are interested.TheSYLOH said:
A quantum computer is a computer, because it can emulate a universal Turing machine, because any conventional circuit can be emulated by Hadamard gates. (With an arbitrarily small probability of getting the wrong answer if there is an answer, natch.)Alcom1 said:
From what I've read, the D-wave style chip isn't a "true" quantum computer. Not being a physicist, the details of the technology go over my head, but I definitely remember computer scientists and physicists insisting that, while what D-wave achieved was valuable and interesting, it wasn't a proper quantum computer.
If Google just build on the system D-wave invented, then they aren't creating a real quantum computer either.
If Google just build on the system D-wave invented, then they aren't creating a real quantum computer either.
The no-cloning rule is a hindrance in that it means we can't verify computation the way that people traditionally used to (i.e. run it a few dozen times and see what happens). This was worked around by quantum error correction [https://en.wikipedia.org/wiki/Quantum_error_correction].Shdwrnr said:
I kind of hope that quantum computing is possible, given that my University claims to have one [http://www.bristol.ac.uk/physics/research/quantum/qcloud/computer/] that you can run code on.
The jury's still up on whether D-Wave's better at what it does (that is, annealing) than a traditional computer. It hasn't been "proven" either way so check your facts.
Quantum computation allows for solving SOME problems with much better time complexity. Take into account quantum decoherence also.
Piece author, pelase check your facts.
Quantum computation allows for solving SOME problems with much better time complexity. Take into account quantum decoherence also.
Piece author, pelase check your facts.
And eventually they will create true artificial intelligence and use it for marketingsorsa said:
"Previously, Google began work back in 2009 with "quantum computing company" D-Wave Systems, whose claims of having made the first quantum computer have been proven illegitimate."
This is false, the statement from the linked article reads
"But independent tests published earlier this year found no evidence that D-Wave?s computer uses quantum physics to solve problems more efficiently than a conventional machine."
This does not say the D-wave's computer isn't a quantum computer, it says that the quantum computer is no faster than a normal computer which is true of everything if you compare a first generation of a new tech with late gen of an old tech.
While D-wave is now calling it's machine a quantum optimizer rather than a quantum computer you have to remember that by todays standards the first computers are less capable than a scientific calculator of today as well.
This is false, the statement from the linked article reads
"But independent tests published earlier this year found no evidence that D-Wave?s computer uses quantum physics to solve problems more efficiently than a conventional machine."
This does not say the D-wave's computer isn't a quantum computer, it says that the quantum computer is no faster than a normal computer which is true of everything if you compare a first generation of a new tech with late gen of an old tech.
While D-wave is now calling it's machine a quantum optimizer rather than a quantum computer you have to remember that by todays standards the first computers are less capable than a scientific calculator of today as well.
So Google is building Skynet? They also own a drone company and AI company. Future doesnt look good. ;-)
I feel that's a rather narrow conception of the singularity.Shdwrnr said:
If you were looking at a black hole from the outside, you would see literally a black spot in space but that's not the singularity. What you're seeing is the event horizon, the point beyond which no light can escape so no light makes it back to your eyes to tell you what the hole actually looks like. In the technological singularity metaphor, the event horizon is the point at which human beings begin augmenting intelligence to superhuman levels. That might not be a computer at all, it might be implants, or genetic engineering, or even drugs. That's not the singularity itself, but it's the point at which future technological development becomes completely unpredictable because it will be governed by intelligence greater than that of modern human beings. It's not the end of development, it's merely the point at which we can no longer guess what happens next.
But if the singularity is not the event horizon, then you have to expand the definition of the singularity to include all the gravitational effects around it. We're already enhancing the way we use human intelligence, and even if we're still reliant on human intelligence to build and operate the devices we create, it still enables things which people in history might have found impossible to imagine or predict.
Thanks for that; I suppose entangling the qubits would act as a kind of correction so long as the noise doesn't propagate through the entangled pairs. I've also read that a group has been able to use the principles of quantum tunneling to determine the spin of a particle without actually measuring it thus leaving it in its superposition but that it's still not 100% accurate. I'm guessing that our early quantum computers will not necessarily be 100% accurate, just accurate enough to do what we need them to do.Zombie_Fish said:
So first, Google is developing aircrafts, and now they aim to develop quantum computers. Whelp. I watched Jörmungand, Google. I know what you're planning... >_> Except they're not launching satalites, but that will come. Soon, Google will control the flow of information!
Serious reply: Pretty amazing, fairly scary implications for the future not withstanding.
Serious reply: Pretty amazing, fairly scary implications for the future not withstanding.
erm, Skynet. No, really. Google rebooted in early spring for 50 minutes into Skynet version 1.0, blamed software bugs for downtime. Suddenly they are investing a lot of money on robotics, unmanned drones, quantum computers, self driving cars and building thier own island. Not suspiciuos at all.sorsa said:
thinking that there are lines that should not be crossed does.Lagslayer said:
