In the past two days, Google and NASA jointly released a paper to achieve quantum supremacy (or quantum advantage).

That is, in a certain field of computing, it does what is impossible for today's most powerful supercomputers to do – they claim to perform a single computation in 3 minutes and 20 planes, and it takes 10,000 years for a supercomputer summit.

Strangely, shortly after the paper was published, Google and NASA retracted it.

In any case, for the field of quantum computing, this is breaking news.

So, what is quantum computing?

For a traditional computer, when its CPU process enters a field smaller than nanometers, all the theories it adapts to will no longer apply.

That's right, Moore's Law failure is certain.

When classical computers enter smaller processes, a new field of physics will enter the field of vision of all scientists, that is, quantum physics.

In contrast, unlike traditional computers, where binary is either 0 or 1, qubits are either 1 or 0.

The two sentences are the same, please refer to the meaning: no one can beat Chinese table tennis, and no one can beat Chinese football.

Yes, qubits can be 1 or 0 at the same time, and when they are entangled, the state that can be represented will grow exponentially, making it possible to calculate millions of possibilities at once.

Cryptography, materials, medicine, and artificial intelligence are the areas where it exerts its power, which means that even if quantum computing is realized, classical computers will continue.

But when will it come to fruition?

Lifetime!

It's just as unspecious as controlled nuclear fusion.

How to control it, how to correct errors, a whole bunch of problems waiting to be solved.

In China, in addition to major universities and Professor Pan's team, there is also Alibaba's Damo Academy from the software level of quantum computing. (Similar to an operating system.) ）

Whether overtaking in corners can be achieved or not, none of us knows, but the study of this thing is a must for all major powers.

The purpose of this chapter is to tell you that semiconductors are still the top priority in the future, quantum computing....... No score!

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