Chapter 549

Find another way?

Professor Lu was slightly stunned, not quite understanding what Gu Lu meant by this sentence.

Gu Lu smiled faintly and said, "Professor Lu, don't worry, you will understand what I mean when I finish speaking later."

actually.

After learning all the relevant knowledge in the field of qubit encoding yesterday afternoon, Gu Lu has been thinking about this issue.

Charge qubit encoding and spin qubit encoding, these two currently mainstream encoding methods obviously have their own shortcomings.

And coincidentally, the advantages and disadvantages of the two can complement each other.

The idea of ​​combining the two coding methods naturally emerged in Gu Lu's mind.

At that time, Gu Lu was certainly aware that countless people had tried this idea before, but no one had succeeded, so the difficulty was undoubtedly quite high.

But Gu Lu still chose to give it a try.

Even if you fail, there is nothing to lose.

But once you succeed, you will earn it with your blood!

Anyway, with the presence of Ai Liang and others, Gu Lu is not worried that there will be no experimental plan to use.

With the mentality of giving it a try and not getting pregnant, Gu Lu took the plunge and gave it a try.

You won’t know until you try.

After trying it, Gu Lu discovered that this problem was not as difficult as he thought!

At first, Gu Lu tried traditional methods. After finding that he had no clue, he started to find new ways and adopted some unconventional solutions.

Countless inspirations flashed through Gu Lu's mind.

Gu Lu could catch it with just a quick grab.

Therefore, in this state of overwhelming inspiration, Gu Lu's work efficiency was quite high.

A seemingly feasible plan gradually emerged under Gu Lu's conception.

Different from the purely physical methods used by previous researchers in this field, the new plan conceived by Gu Lu combined many mathematical elements.

To put it simply.

Gu Lu used a rather mathematical language to serve as the main skeleton of the new plan.

In this way, a difficult problem in the field of qubit encoding becomes a mathematical problem.

As the world's top mathematician, Gu Lu is certainly very good at handling mathematical problems.

Using one night and this one-day meeting, Gu Lu finally completed the theoretical framework of the new plan.

Next, it is time to lift its veil and present it to the world.

…………

Gu Lu breathed a sigh of relief, holding a marker and starting to explain the new plan under everyone's surprised eyes.

"In fact, the principle of combining two qubit encoding methods is not complicated. Simply put, the white spin states of multiple electrons are used to form a parallel or quasi-parallel energy level structure, thereby improving the qubit's anti-interference ability against charge noise.

."

"At the same time, the difference in charge distribution in different states is used to achieve the measurement of qubits."

Everyone knows this truth.

But they still don't understand how Gu Lu achieved it.

This is so difficult...

It is basically impossible to come up with a practical plan in just one day.

In fact, let alone one day.

If they are allowed to come here, even if it takes a year, they may not be able to come up with a feasible plan.

Everyone's curiosity became more and more intense.

Gu Lu, who noticed the change in everyone's eyes, just shook his head and smiled, and continued to talk.

Gu Lu first drew a schematic diagram on the side of the blackboard, then pointed and said, "Let's talk about the spin qubit encoding part first."

"One thing we all know is... In this way, a spin quartet with a spin quantum number s=3/2 is formed. The spin components of these four states are respectively."

"Next step, we introduce the concept of Hamiltonian... Through not too complicated calculations, we can get that the Hamiltonian of the system based on these three states is:

h1=

h2=

h3=……”

Gu Lu explained step by step in an orderly manner.

The people in the conference room below became more and more awkward as they listened.

It’s not because Gu Lu’s story was full of loopholes.

On the contrary, what Gu Lu described on the blackboard was quite rigorous.

One logical loop after another is connected in series, making it impossible to find any faults.

But here's what makes people feel awkward.

What Gu Lu explained was so rigorous that it seemed that he was not discussing a physical problem, but a mathematical problem!

By the way, math problems!

Looking at the dense mathematical formulas on the blackboard, everyone finally realized where the awkward feeling appeared.

That's because when Gu Lu described his plan, it was too unphysical.

On the contrary, it looks very ‘mathematical’.

Formulas and numbers are normal in physics.

But it would be very unscientific to have a blackboard full of formulas.

And look at the Gu law, which is a Hamiltonian and a spin component, and there are so many data parameters to set.

It is obvious that Gu Lu completely regarded this problem as a mathematical problem!

Could it be that this is what Gu Lu just said...find another way!

…………

Gu Lu's narration continues.

Although Gu Lu's theory is not too complicated, it is for Gu Lu himself.

But after all, the people in front of him were physicists, not mathematicians, so it took a lot of time to understand and digest the many formulas Gu Lu wrote on the blackboard.

So it took more than half an hour for Gu Lu to enter the final stage of explaining the experimental plan.

"...Through the interference fringes obtained in the above experiment, we can obtain the detuning amount corresponding to the pulse height converted from the voltage energy ratio. After obtaining this parameter, by substituting it into the previous formula 11.3, we will get a very high

Universal qubit encoding equation."

"In this equation, x represents the amplitude of the pulse curve, y represents the evolution time, and z represents the oscillation frequency..."

When the final formula was presented in front of everyone, everyone's eyes widened.

Success!

It actually worked!

An incredible scene happened in front of everyone's eyes.

That is, Gu Luzhen used a mathematical approach to come up with a set of practical experimental plans.

Everyone listened carefully to the entire process that Gu Lu described, so it was obvious that there were no obvious loopholes in Gu Lu's entire plan.

It can be said that Gu Lu's plan is very feasible in the eyes of everyone for the time being.

One side of the conference table.

Professor Xie swallowed hard.

He also didn't expect that Gu Lu would break his doubts and actually create a perfect qubit encoding method.

"Professor Gu, what is this new coding method called?" Professor Lu on the side turned red and asked excitedly.
Chapter completed!