Zhou Yu walked into the quantum computer laboratory, and he knew that the prototype of the quantum computer had been developed.

Quantum computer prototypes can achieve the various functions expected by quantum computers, and quantum computer projects can be declared successful.

The quantum computer they developed was only 30 qubits.

This is just a barely usable quantum computer, and in the future, quantum computer labs will develop quantum computers with hundreds or thousands of qubits.

Zhou Yu came to a dust-free laboratory covering an area of 500 square meters, and a huge equipment lay in the center of the laboratory.

In the center is a huge ball with a diameter of two meters, which is the most conspicuous, and there are many researchers around it to look at the parameters, which is the core equipment of the quantum computer.

At the top left of the lab is a spiraling pipe, much like a large mosquito coil placed on the ground.

To the right of the lab is a row of flickering cabinets that occupy almost a quarter of the lab.

Zhou Yu walked directly to the edge of the big round ball, a young man about the same age as him.

The young man was wearing a laboratory anti-static white coat and stared at the data displayed by the large round ball.

This person is Zhang Wei, the director of the quantum computer laboratory, and the proud protégé of Academician Pan.

He took the initiative to resign from the laboratory under the Chinese Academy of Sciences because of his friendship, and then came to the Xinghuo Science and Technology Research Center for treatment, and became acquainted with scientists.

Zhang Wei was recruited by Academician Tian Kai to the quantum computer laboratory, and soon became the leader of the quantum computer laboratory with his ability.

Academician Tian Kai walked over and said, "Zhang Wei, you can introduce me and Mr. Zhou to quantum computers."

"Mr. Zhou is good, Director Tian is good."

Zhang Wei pointed to the huge ball beside him and introduced: "This device is the core quantum coherence sphere of quantum computers."

The most essential characteristics of quantum computing are quantum superposition and quantum coherence.

The transformation of each superimposed component by a quantum computer is equivalent to a kind of classical computation, and all these classical computations are completed at the same time, which is the quantum parallel operation of a quantum computer.

Both quantum parallel computing and quantum analog computing essentially make use of quantum coherence.

Zhang Wei said proudly: "As we all know, quantum computers can achieve their functions by relying on quantum coherence.

But quantum coherence is difficult to maintain in real-world systems.

In a quantum computer, the qubit is not an isolated system, it interacts with the external environment, resulting in the decay of quantum coherence, i.e., decoherence.

One of the core issues for making quantum computing a reality is overcoming decoherence.

This device is specifically designed to overcome quantum decoherence in quantum computers, allowing qubits to achieve quantum parallel computing and quantum simulation computing. ”

Zhou Yu smiled, he finally discovered the knowledge points he knew.

"I know that quantum coding is the most effective method of overcoming decoherence.

The main quantum coding schemes are quantum error-correcting codes, quantum error-avoidance codes, and quantum error-proofing codes.

What kind of coding scheme did you use, and is this the coding scheme that they worked on in collaboration with Director Wei Tianpeng? ”

Zhou Yu was a little surprised, their confidentiality is too good, and Zhou Yu only pays attention to the key progress of the project.

However, when it comes to the cooperation of multiple laboratories, as the director of the Science and Technology Committee of Xinghuo Technology, he is responsible for coordinating various laboratories, and he basically understands what cooperation there is.

Zhang Wei was stunned for a moment, and explained with a smile: "Mr. Zhou, we did not use quantum coding to solve the decoherence problem.

This solution is a complete trap, which is why a true quantum computer has not yet been developed.

The quantum coding scheme only artificially compensates for the missing part of the qubit information through encoding, that is, the software scheme.

Quantum mechanics explains that the quantum is in Schrödinger's cat state at all times, which cannot be observed by humans at all, and is subjectively supplemented by coding, which completely destroys the quantum state.

The results calculated by this kind of quantum computer must be the result of mutilation, and it is impossible to give full play to the main capabilities of quantum computers. ”

Academician Tian Kai reminded on the side: "Zhang Wei, what are you explaining!" Explain directly how your coherent ball works.

The basic operation of this prototype of a quantum computer, that's what we want to know. ”

Zhang Wei said with some entanglement: "The first time I underwent Mr. Zhou's inspection, I was a little nervous.

This is also a habit that I brought from the Chinese Academy of Sciences, and the leaders there like us to explain it this way.

The more esoteric it is, the more unclear it is, and they feel that the project has a future and will increase their investment in the project. ”

Zhang Wei said this, which immediately eased the slightly embarrassing atmosphere at the scene.

He also briefly explained the principle of the operation of quantum coherent spheres, which is actually very simple, the two most obvious forces in the microscopic field are strong interaction forces and weak interaction forces.

Quantum decoherence is because the external system affects the qubits, and he uses the strong interaction force and the weak interaction force to form a balanced system of forces.

The qubits at the equilibrium point are offset by external influences, which are slightly unaffected.

This method is the most universal and efficient method at this stage.

It can't completely cancel out the influence of the outside world on the qubits, but it minimizes the effect and allows the qubits to maximize their coherence.

Zhang Wei said with some gratitude: "I also want to thank Zhao Zhao, a scientist from the Neutrino Laboratory.

He inspired me by capturing neutrinos with weak interaction forces through heavy particles. I was able to develop quantum coherence spheres. ”

Zhou Yu clapped his hands and said excitedly: "It's easy for me to understand when you say that, isn't it equivalent to the Lagrangian point of a celestial body, and the objects at this point are in gravitational equilibrium."

Zhang Wei showed a stunned look on his face, the gap between celestial mechanics and quantum mechanics is too big, these are two things that are completely unrelated.

"The principles are very different, but the effect is pretty much the same, which is to try to keep the qubits in balance with the outside system."

When Zhou Yu saw Zhang Wei's helpless face, he knew that he had just said the wrong thing.

He was trying to learn more about the quantum computer prototype when it suddenly occurred to him that the quantum coherence sphere is the core device of the quantum computer.

As long as this technology is obtained, it will be possible to judge whether this kind of quantum computer development route is feasible.

"Director Zhang Wei, show me the principle of quantum coherence ball technology, and I will understand how you can implement this technology."

Zhang Wei used Xingling glasses to send Zhou Yu the technical principle of the quantum coherence ball, and the expression on his face was very strange, mixed with curiosity and disbelief.

He believes that Zhou Yu can't understand the technical principle of quantum coherence spheres at all.

Zhou Yu carefully read the technical principle of the quantum coherence sphere, and he understood it a little, and the space of the technology tree in his mind was constantly raining golden raindrops.

The science and technology tree digests this knowledge and feeds the knowledge back to Zhou Yu, so that he can understand the next knowledge.

Through this positive feedback method, Zhou Yu quickly digested the knowledge of quantum coherence spheres.

The science and technology tree shook in my mind, and some quantum computer technologies grew in the computer technology area.

Zhou Yu instantly learned about the more advanced quantum coherence ball technology.

At the same time, he knew that this kind of quantum computer development path was completely correct.

Zhou Yu stared at Zhang Wei with a smile on his face, and the next thing was when he showed his skills.

When Academician Tian Kai saw Zhou Yu's expression, he looked at Zhang Wei with caring eyes, don't be hit for a while.

At the same time, many fragments emerged in his mind, all of which were used to discuss technology with Zhou Yu, thinking that Zhou Yu did not understand this technology.

Unexpectedly, Zhou Yu interpreted this technology from an alternative perspective and helped him solve the technical difficulties.

。 Romance m.