Quantum Computing

[Cowboy X]

The future is upon us :

http://www.wired.com/news/technology/0,70001-0.html

 

[StefanS]

The future is upon us :

http://www.wired.com/news/technology/0,70001-0.html

While this is certainly quite nice, don't get your hopes up. Up to this point they've only created 1qubit. Plus, decoherence is probably a real nightmare in this system.

 

[eloic]

More than ten years have passed since this...

Any interesting/meaningful news?

Now we have computers such as D-Wave, being D-Wave 2X the last version, with 1000 qubits approx.

PS: shouldn't this thread be in PC Hardware?

 

[Pixel]

 

[MfA]

I remain convinced that electrical quantum computing is a boondoggle, funded solely to keep everyone's eyes off the prize. Optical.

 

[Davros]

you cant keep a photon stationary (so to speak) and they get absorbed upon measurement unlike electrons

 

[eloic]

https://www.sciencenews.org/article/quantum-computers-are-about-get-real

 

[eloic]

In Brief
Earlier today, IBM announced a 50-quantum bit (qubit) quantum computer, the largest in the industry so far. As revolutionary as this development is, IBM's 50-qubit machine is still far from a universal quantum computer.

https://futurism.com/ibm-announced-50-qubit-quantum-computer/

 

[eloic]

Microsoft and Google prepare for big leaps in quantum computing
Companies set to give big boost to potentially revolutionary technology​

https://www.ft.com/content/4b40be6c-0181-11e8-9650-9c0ad2d7c5b5

 

[eloic]

The Quantum Race the United States Can’t Afford To Lose
The quantum race is on, and the stakes are high. The winner will gain a military and intelligence edge, as well as a first mover advantage in what is guaranteed to be a massive industry for decades to come. How will the United States fare?​

https://www.cfr.org/blog/quantum-race-united-states-cant-afford-lose

 

[eloic]

Nuclear physicists leap into quantum computing with first simulations of atomic nucleus

Scientists have now simulated an atomic nucleus using a quantum computer. The results demonstrate the ability of quantum systems to compute nuclear physics problems and serve as a benchmark for future calculations.

An image of a deuteron, the bound state of a proton and a neutron.
Credit: Andrew Sproles, Oak Ridge National Laboratory​

https://www.sciencedaily.com/releases/2018/05/180523133216.htm

 

[eloic]

Quantum computer simulates two types of bizarre materials
It’s the first time such computations have been performed on such large scales
Scientists have used a quantum computer to conduct large-scale simulations of two types of quantum materials. These studies involved about 2,000 quantum bits, or qubits — many more than the tens of qubits available in most quantum computers.

The results, published in two recent studies in Science and Nature, provide a new realization of the vision of physicist Richard Feynman, who hoped to use quantum computers — rather than computers based on standard, or classical, physics — to simulate quantum systems and study their behavior. “Nature isn't classical, dammit, and if you want to make a simulation of nature, you’d better make it quantum mechanical,” he famously said in 1981.

https://www.sciencenews.org/article/quantum-computer-d-wave-simulations

 

[MfA]

you cant keep a photon stationary (so to speak) and they get absorbed upon measurement unlike electrons

That's a problem if you want to latch their state, if you can just build the entire pipeline for the algorithm it's irrelevant. You won't get a programmable quantum computer, but you can get a quantum codebreaker.

Some massively parallel computations are trivial with optical, for instance FFT ... and there are quantum FFT equivalents which seem to also be relatively straightforward to implement (relative to electrical). An operation which happens to be quite important for Shor's algorithm.

Electrical quantum computing is propagandised to keep people's eyes off the prize. Extremely high tech research build up to be extremely prestigious ... and which is extremely irrelevant.

 

[Alexko]

you cant keep a photon stationary (so to speak)

That's just because you're not holding on tight enough.

 

[Davros]

Wouldn't you need a light touch

 

[eloic]

The World’s First Practical Quantum Computer May Be Just Five Years Away

Now, though, the National Science Foundation has plans to pluck quantum computers from the realm of the fantastic and drop them squarely in its research labs. And it’s willing to pay an awful lot to do so.
In August, the federal agency announced the Software-Tailored Architecture for Quantum co-design (STAQ) project. Physicists, engineers, computer scientists, and other researchers from Duke and six other universities (including MIT and University of California-Berkeley) will band together to embark on the five-year, $15 million mission.

https://futurism.com/quantum-computer-first-practical/

 

[Davros]

$3M a year isnt a lot

 

[eloic]

$3M a year isnt a lot

In comparison to what? I have no clue, honestly.

 

[Deleted member 11852]

In comparison to what? I have no clue, honestly.

Starbucks prices?

 

[Davros]

In comparison to what?

The sort of money needed to develop these things intel probably spent more developing core 2