Google makes quantum computers, a billion times stronger than the current most powerful supercomputers

According to Google, the quantum computer they just built is capable of solving a problem in just 200 seconds, and today's most powerful computers take 10,000 years to solve the same problem.

On October 23, Google announced in the journal Nature about its new quantum computer, with the power reaching a speed known as "quantum superiority".

With this new type of computer, a new digital era has been explored when we can use quantum computers to find new drugs, increase the possibility of artificial intelligence .

However, the ominous thing is that this new type of computer can fall into the wrong hands and they will easily crack the encryption to protect some of the most closely guarded secrets in the world today.

Quantum Computer Sycamore from Google - (Image: Google)

Google scientists say such practical use is probably still decades away. But the latest findings, published in the journal Nature "show that quantum acceleration can be achieved in a real-world system and not excluded by any hidden laws of physics. come on ".

Both Microsoft, IBM and Intel are now working on quantum computing, in order to process their large amounts of information more quickly.

Unlike conventional computers that use bits to store computational information, quantum computers use Qubit. Unlike Bit, which only stores information in one of two states, 0 or 1 (yes or no) at a time, Qubit can store many different states at the same time.

Specifically, according to the modalities, the number of states that Qubit can represent is made up of a spherical combination, with the points on the sphere being a state point. So, in theory, Qubit is capable of representing quantum information up to infinity rather than just 0 or 1 like the classic Bit.

Because of such a fast computing speed, Google's quantum computer must be placed in a cold region, even colder in space to control the state of Qubit.

Google says its quantum processor, called Sycamore , has completed a calculation in 3 minutes and 20 seconds, and it will take 10,000 years with today's fastest supercomputer to do the same thing.

However, Google's claims were quickly criticized by technology rivals. IBM quickly said that its Summit supercomputer could perform the same calculation in just two and a half days, not 10,000 years as Google announced.

Google also quickly rejected IBM's announcement. However, whether or not Google's quantum computer is "overwhelmingly superior" compared to the other computers or not, this is still a big step in the field of computer science.