Chapter 277: Quantum Computers

Planet Helfa.

Dakeng base.

Artificial intelligence Nuwa, after transporting the alien spacecraft on Mars back without damage.

Focusing on various advanced technologies on alien spacecraft, artificial intelligence Nuwa and Alice have invested considerable resources in research.

Combined with the scientific and technological information in their own hands.

It took a few months.

Recently, the first major achievement was finally achieved – a quantum computer.

A 128-bit quantum computer.

Only 128 bits?

Isn't that a little too little?

In fact, 128 bits here are similar to the meaning of "bits" in "32/64-bit operating systems", which refers to a maximum of 128 qubits that can be operated at a time.

And inside the refrigerator-sized "quantum computer" in front of Chen Jin, there are at least trillions of light quanta.

It is only possible to manipulate up to 128 entangled quanta at a time and perform a series of calculations.

"Nuwa, Alice, according to me, the computing power of a quantum computer is 2 to the Nth power, that is, how many entangled quanta can be controlled at the same time, and the computing power can reach the power of 2, your quantum computer is 128 bits, and the computing power is 128 square of 2......"

"How much is 2 to the 128th power?"

Chen Jin looked at the two artificial intelligences in front of him and said.

"It's equal to 3.4028 times 10 to the 38th power, which is 340.28 trillion exaflops, which is 340 million times faster than me and Alice." Nuwa said.

Lying grass~

Chen Jin opened his mouth wide: "A device of this size is equivalent to more than 300 million units for you and Alice?" ”

Quantum computers are too awesome!

"It can be understood in this way, but quantum computers cannot completely replace traditional computers, and its advantages lie in some special areas of mathematical computing, such as factorization, solving logarithms, cracking complex cryptographic systems, building molecular models, using particle physics, and even rendering collision effects in games...... It's a powerful tool, but it's not a panacea, and its capabilities shouldn't be overstated. ”

"Why can't it be done? I remember a scientist saying that a quantum computer can do everything. Chen Jin was puzzled.

"That's just some commercial exaggeration."

Nuwa explained: "The situation of Helfa is similar, in the early stage of the development of quantum technology, as long as it enters the microscopic scale, it seems that everything can be linked to the word 'quantum', such as quantum water, quantum TV, quantum air purifier, etc...... In fact, it has nothing to do with quantum, it is just a hype concept, and it has nothing to do with real quantum technology. ”

"The real power of quantum computers is that they are used for data processing, and secondly, they are used for encryption of communications, and other aspects are lackluster."

"As a simple example, the traditional computer is composed of three parts: the storage unit, the control unit, and the computing unit, but quantum cannot store data, because its state is a superposition of 0 and 1, which belongs to an uncertain form, while our data is deterministic and can only be stored in traditional media."

"Of course, we can add a 'quantum computing module' to the traditional computer, which can actually be called a 'quantum computer', and it is indeed much stronger than a traditional computer alone."

"So Alice and I are both 'quantum computers' now, because we both have added a 'quantum computing module' in the past two days."

Listening to Nuwa's somewhat ridiculous words.

Chen Jin's face was embarrassed.

Quantum computing is actually not complicated, but many pseudo-experts and commercial organizations, for their own interests, insist on explaining this very complicated, which makes people feel very high, as if quantum is omnipotent.

However, there is no question of who replaces whom between classical computers and quantum computers, both have their own advantages and disadvantages, and the two can complement each other and complement each other, and will not lead to the decay or elimination of classical computers because of the emergence of quantum computers.

The two will coexist forever.

Of course, the power of quantum computers cannot be denied, because most of the problems in this world can be attributed to mathematical problems in the end.

The essence of this universe is actually mathematics!

Nowadays, the mathematical calculation capabilities of artificial intelligence Nuwa and Alice have both increased by 340 million times, which undoubtedly has a huge effect on the development of the Dakeng base and the development of Hellfa Planet.

Even a lot of energy is saved.

For example, after Nuwa and Alice loaded the quantum computing module, most of the complex calculations were handed over to the quantum computing module, and the energy consumption of both was reduced by more than 50%.

The speed of scientific research in various fields will also be significantly accelerated.

But Chen Jin was still not satisfied.

"Nuwa, isn't it a bit too little to manipulate 128 qubits at the same time, why can't it be increased to 256 or 512, isn't that even more exaggerated?"

"128 is enough for the master."

Nuwa explained: "The higher the number of qubits, the faster the decoherence (i.e., exit from the entangled state), and the lower the error correction accuracy of the error correction code, 128 qubits are almost just right, which is not only very self-sustaining, but also has an error correction rate of more than 99%, achieving the best balance." ”

"The quantum module in the computer on the alien spacecraft is even only 64-bit, and in the small scene use mode, it shows that the brain crystal people feel that 64 bits are basically enough, and the 128-bit quantum computer can basically solve all mathematical problems...... At least for now, it's sufficient. ”

Chen Jin nodded.

At present, it is indeed enough, and if it is found that it is not enough, then find a way to develop a higher quantum computer.

And with quantum computers,

It means that the Dakeng base has broken through the bottleneck of computing power, which is equivalent to having unlimited "computing power".

This means that the progress of work on all projects will be greatly accelerated.

Suddenly.

One thing comes to mind.

Chen Jin muttered to himself: "It seems that on the other side of the earth, various powerful countries are developing quantum computers, this year this country has broken through 10 qubits, next year that country will break through 20, as long as it can reach 50, it will announce that it has achieved quantum supremacy...... At present, the closest country to achieving quantum supremacy is country Z, which is said to have broken through to 39, and quantum supremacy is close at hand. ”

And he also found that in the field of quantum computing, the development of the earth seems to be particularly fast, and the performance is very bright.

Alice said with some disdain: "This kind of hegemony is not of much significance, Planet Hailfa has also obtained quantum supremacy very early, and even reached a maximum of 198 qubits, but after a long time, commercial quantum computers can only process 32 qubits at the same time; After 200 years, it has not reached 50 qubits...... The future of quantum technology is bright, but commercial quantum computers above 64 bits are difficult. ”

It can't even keep up with the growth rate of computing power of traditional computers.

So I stayed in the laboratory for a long time.

"Really?"

Chen Jin was a little surprised, a technology with such a bright future actually stayed in the laboratory stage for a long time?

However, he still decided to set up a "quantum computing research center" on the other side of the earth, and strive to produce a commercial quantum computer with more than 50 qubits in one or two years...... Quantum supremacy, he's going to take it.