Google claims quantum supremacy for computer

Talking out of my butt but I am on board with IBM on this one. Grandiose claims with no evidence.

 

Quantum, eh? We are stuck with silicon for another decade.

 

Wow, I really don't understand any of this, I even tried reading the source article that was linked! I just don't understand it! Well, I understand that Google thinks they've developed the first quantum computer that is calculating something that silicon based computers practically can't do, but beyond that I know nothing!

 

I thought you could only keep a current quantum computer running for a microsecond (still enough for loads and loads of computations), so 200 seconds would be huge. But then again, I don't keep myself updated on quantum computers at all.

 

Crysis anybody

 

Google does not give many details - to be expected since there is a big race between IT giants to achieve first this technological breakthrough - but is it "real" quantum or just an emulator (quantum “logic” imitation)???
Also even if quantum computers will come to life some day this does not mean that they will replace "classic" silicon based computers (quantum computing is based on gold chips). Sure they will have a place in scientific research, whether prediction patterns, cryptography, nano tech new materials creation but for servers, applications for office and home, entertainment and multimedia silicon based "classic" computers will still be the most efficient and cost effective solution. So these "quantum" computers will not replace but work together with "classic" computers.

Also I die of curiosity (I am a physics engineer working in quantum optics field) to know how they solved the "noise" problem as specified in this article if this is "real" quantum on not logic imitation: https://www.quantamagazine.org/gil-kalais-argument-against-quantum-computers-20180207/
Quantum optics and quantum physics in general already gave us a very useful application from non linear optics theory: The Scanner/Copy machine so I think that quantum computing is next but let this be for real and not some marketing stunt...
D-wave is an example of quantum emulator and not "real" quantum computing.

Oh and there is also this problem:

 

Very nicely perceived boss. That's exactly why quantum communications are among the first and foremost on the frontlines of quantum science. There's many programs for this, in particular I'm aware of the Austrian scientists collaborating with the Chinese universities, and this already launched in 2016:
https://www.oeaw.ac.at/en/oeaw/pres...irst-quantum-satellite-successfully-launched/

And this is not the only program, I would bet my money on it, the US (DARPA) and many other countries / governments too search for quantum encrypted communication, if only to make their own comm as hard to decipher as others can, keeping balance. Especially in military environments, I'm fairly sure, there are already some computers / quantum chips which are faster / stronger / more qbits than google here claims to have as a new success.

 

Quantum computers, in a nutshell:

 

Thanks for that additional info. I think I can see more now how it works. But I'm still struggling how it can work together if a qubit can exist as all possible combinations at the same time, if that's the case then how do you know and influence what is really stored there if it can be all of them at the same time - does not compute, ha!

 

Microsofts Quantum computer

Googles claim of a Quantum computer

 

Ha, I see what you did there!

 

and I thought you were just the pretty face of Guru3D!

 

Yes very dangerous... and even more so because the large government and other shady organizations are currently predicting this will happen so that's why they are archiving all current secure encrypted communications and data from major pipes in/out of countries in secret rooms in the entry points funneled to major secret storage facilities, in the hope that soon enough they will be able to crack open all this data for their own use against anyone they want.

 

As I guess, it works via quantum entanglement. Two particles being entangled, as in the same quantum state, and the moment you measure or interact with one you change it, but you know which state the other had that was not changed... all very hypothetical. So in theory, I guess it all needs a full set of duplicates of quantum particles to work. One that's "saving" the data, and one you can actually interact with. But that said, I'm fairly sure somebody else can explain this better. In more detail too. After all I'm not a physicist.

 

I'm not so sure about that... reminds me of the famous IBM prediction for computers when each one was the size of a large room ...

"I think there is a world market for maybe five computers."

Thomas Watson, president of IBM, 1943

 

Hmm Interesting. Of course with all new technologies there are spin of technologies. I taste a time machine spin off here. 4 Dimensions and all. My guess is people from the future will travel back in time to take our JOBS>

 

As with any new technology you have to verify your claims but i take the view that this is a google marketing ploy to get an advantage over the competition at least in the short term until someone else proves that it can be done and then you provide your results so until that happens be a skeptic