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Chapter 358 Revisiting the Chinese Academy of Sciences

In this quiet state of solitude, Xu You was able to adjust his state to the best.

After so many days of accumulation, Xu You's various abilities have improved to varying degrees.

Even though the learning level is still level five, compared to when he just reached level five, Xu You's brain power and academic ability are stronger.

Soon, Xu You entered a better state of flow from the state of deep learning.

This is Xu You's best self-perception so far.

In such a state, Xu You quickly deduced a series of related formulas, gradually approaching his ideal goal.

The expected value of quantum observations.

The eigenvector corresponding to the measurement operator.

The expected value of the quadrature measurement.

The complex formulas were deduced one by one by Xu You.

I don't know how much time has passed.

Xu You finally finished writing the last calculation formula.

"If I'm not mistaken... the largest quantum violation value is such a result."

Xu You has great confidence in himself, because for so many years, every calculation made by Xu You is very accurate.

On the basis of these formulas, Xu You designed the quantum circuit diagram of the experiment and made a plan for the whole experiment.

After completing all the work, Xu You came to the quantum physics laboratory again.

Wang Xiangwu was still resting and did not appear in the laboratory.

Before the experiment started, Xu You explained to everyone the main content of the experiment and some of its main points.

"What we are going to do this time is a simulation experiment of quantum nonlocality. This is the quantum circuit diagram we need to build. Next, we have to complete the preparation of entangled states, the unitary evolution of quantum states, and the quantum measurement work."

Except for what needs to be done in the experiment, Xu You didn't tell them too many other things.

After all, this is an experiment related to island quantum computers.

Even so, in order to ensure the confidentiality of the project to the greatest extent, Xu You still asked them to sign a non-disclosure agreement.

After Xu You explained the steps and precautions of the experiment.

The experiment has officially begun.

Because Xu You has completely designed the quantum circuit diagram of this experiment.

The difficulty in the experiment mainly lies in the construction of the quantum circuit diagram and the final measurement.

In order to perform better statistical comparisons, the entire experiment needs to measure a huge amount of data.

If Xu You is the only one who conducts the experiment, I don't know how long it will take to complete the construction of the quantum circuit diagram and the measurement of the data.

Fortunately, there are teachers and students of these majors to help Xu You conduct experiments.

This makes the progress of the whole experiment very ideal.

After completing the measurement of hundreds of sets of experimental data.

Xu You personally began to organize the data.

Xu You based on the formula he derived and all the data measurement results.

An actual quantum violation value is calculated.

"Sure enough! The experimental measurements and theoretical estimates are almost completely consistent!"

After completing the final calculation of the experimental values ​​of the quantum measurements.

Xu You was finally sure that all his theoretical derivations were correct.

In this way, Xu You can perform quantum programming on the optimal selection problem according to this theory.

Later, Xu You got in touch with Han Shubin and informed Han Shubin of the result.

"Optimization selection problem...Professor Xu, do you have any specific choice direction at present?"

"The specifics have not been determined for the time being. After all, the theory is only completed now, and it is best to familiarize yourself with the new quantum-optimized device architecture."

To determine the specific direction of the problem, Xu You felt that Xu You had to work with the quantum computer.

After listening to Xu You's words, Han Shubin also understood what Xu You meant.

"Professor Xu, it's like this. Our island quantum computer still has strict requirements on many environmental factors, and it's really not convenient to move the location. If you can, you can come to our Chinese Academy of Sciences for research."

It is not realistic to transport the island quantum computer to Jijing University, and Han Shubin can only express this idea to Xu You tactfully.

"I understand, Academician Han. Then when I have time, I will come to the Chinese Academy of Sciences to disturb you."

"Don't disturb, you are always welcome."

Xu You still remembered that because Jijing University was not outstanding in engineering, Xu You tactfully begged Han Shubin to let him go to the Chinese Academy of Sciences to learn some cutting-edge knowledge in engineering.

At that time, Xu You could only be said to be a fledgling in scientific research. He only published two papers and did not achieve much.

Even so, Han Shubin readily agreed to Xu You's request.

However, due to time constraints, Xu You did not really come to the Chinese Academy of Sciences to study.

On the appointed day, Xu You came to the Chinese Academy of Sciences under the escort of three bodyguards.

Liu Jiao received Xu You warmly, and brought Xu You to the quantum computer laboratory on the island.

This is the second time Xu You has seen the island quantum computer.

Xu You still remembers that the quantum error-correcting code he developed last time allowed the island quantum computer to perform calculations with very high fidelity.

Seeing the Sea Island Quantum Computer again, Xu You felt cordial and shocked at the same time.

Different from ordinary computers, the sea island quantum computer is very large and has a huge feeling of early computers.

Because the island quantum computer is a superconducting quantum computer, it needs to keep the temperature low to maintain the operating environment of the quantum computer.

In addition to temperature, noise is also a condition that must be strictly controlled.

As long as the decibel value of the noise exceeds a certain level, it will greatly affect the operational stability of the quantum computer.

"Professor Xu!"

Seeing Xu You, Han Shubin greeted him warmly.

"Academician Han, we meet again."

In addition to Han Shubin, Xu You also met Chang Xiaoping, an engineer from the software department, whom he had worked with before.

"Professor Xu, I still have some other things to deal with here. If you have anything to do, you can talk to Chang Gong first."

"Okay, Academician Han, go and do your work."

Xu You and Chang Xiaoping are also quite familiar with each other. They have cooperated for a while because of the research on quantum error-correcting codes.

In terms of software, Chang Xiaoping is even more professional than Han Shubin.

"Professor Xu, I heard from Academician Han that you have solved the problem of non-locality of the qubit system?"

"Well, it has been solved theoretically, and the experimental measurement results are completely consistent with the theoretical value. Of course, whether it can be applied in the end depends on the feedback from actual programming."

In the previous quantum programming experiment, Xu You did not use a quantum computer, but only conducted an experiment with a relatively simple quantum circuit.

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