After Yang Yiyi watched for a while, she found that Chen Zhou had not moved.

Immediately got up and touched the temperature of the box.

Fortunately, the rice is not cold yet......

Yang Yiyi felt that it was necessary for the two of them to buy a microwave oven.

Moreover, this microwave oven is placed here in Chen Zhou.

Otherwise, Yang Yiyi was really worried about whether Chen Zhou would eat cold rice every day in the future.

For Yang Yiyi, who knows Chen Zhou very well, she feels that this possibility is very great.

When Yang Yiyi was stunned, Chen Zhou's voice suddenly came from behind him.

As the sound came into her ears, Yang Yiyi's face quickly climbed into a layer of redness.

In fact, after Chen Zhou completed the theoretical calculation of the Coulomb gauge model.

I realized that I had to eat!

Then, as soon as he got up, he found that Yang Yiyi was holding something and was standing there in a daze.

Chen Zhou then quietly leaned over.

When he saw the packing box in Yang Yiyi's hand, Chen Zhou's heart suddenly warmed.

As he spoke, he hugged Yang Yiyi from behind.

Not in a hurry to break free from Chen Zhou's embrace, Yang Yiyi said in a low voice: "Hurry up and eat, it will be cold in a while." ”

Chen Zhou rested his head on Yang Yiyi's shoulder and said softly, "I'll eat later, I want to hug you." ”

Yang Yiyi stopped talking and let Chen Zhou hold him like this.

Chen Zhou didn't hold it for long, it was about two minutes.

Then Yang Yiyi kissed her on the face, and then took the packing box from her hand.

Yang Yiyi also fled quickly and returned to the desk to sit down.

"Yiyi, how long have you been here?" asked Chen Zhou as he opened the packing box.

"Hmm......" Yang Yiyi pondered for a while, "There are still ten minutes left until an hour." ”

Chen Zhou was stunned for a moment, then smiled and began to solve his lunch.

After Chen Zhou finished eating, he did not immediately go to work.

Instead, he chatted with Yang Yiyi for a few words, and by the way, he walked and walked, and he eliminated food.

Wait until the room and be quiet again.

When only the friction of the tip of the pen and the paper remained, Chen Zhou and Yang Yiyi were immersed in their own world.

String theory is another method that can be used to describe strong interactions.

A milestone in the development of this method was the equivalence of conformal fields and string theory in Anti-DeSitter space-time, proposed by Juan Mardasina.

That is, AdsCFT correspondence.

As a special case, the glue ball operator under the conformal gauge theory is defined on the Ads boundary condition.

It corresponds to the chord expansion field.

This is another theoretical method for calculating the mass of rubber balls.

It took less than two hours for Chen Zhou to use the AdsQCD method to obtain the mass of the rubber ball in the quantum number state of different particles.

Take out the scratch paper with the quality of the glue ball and stack it on top of the previous paper.

According to the plan, Chen Zhou began to study the next theoretical method.

Time is always moving forward, and Chen Zhou is always chasing the footsteps of time.

"The QCD summation rule is one of the few theories developed in particle physics that can be calculated from the first principles of quantum chromodynamics......

Chen Zhou looked at the content on the scratch paper and sighed slightly.

Although the search for rubber balls has been going on for decades.

The development of theories is also much higher than the observation of experiments.

However, the theory is still quite limited.

The QCD summation rule was first proposed by three Russian theoretical physicists, Shifman, Vainshtein and Zakharov.

Therefore, this method is also known as the SVZ summation rule.

It links hadron characteristic parameters such as hadron mass, decay constant, and neutron magnetic moment with several QCD vacuum parameters, i.e., the condensation of gluons and quarks.

The SVZ summation rule creates a bridge between QCD theory and hadron spectrum.

It was a very successful bridge.

It can be used to approximate the many properties of ground state hadrons.

Thinking of these three physicists, Chen Zhou thought of the paper that discussed the decay of K mesons.

It was a paper published by the trio in the Soviet Union's specialized physics journal JETPLetters.

For the first time, a singular quark was calculated, and the single-turn decay process was carried out.

Moreover, Professor Shifman once simplified the corresponding Feynman diagram.

As for the simplified diagram, it is the famous "penguin diagram" in particle physics.

Chen Zhou drew this famous penguin in the spare space on the scratch paper.

Chen Zhou smiled slightly, retracted his divergent thoughts, and returned to the QCD summation rules in front of him.

The "QCD" in the QCD summation rule refers to the theoretical calculation of QCD based on PIPE.

The "summation rule" refers to the summation of hadrons with the same quantum number and quark composition.

The two use the mathematical tool of dispersion integration to establish an equation, called the main equation.

The main equation is a direct result of the duality of the correlation function Π(q^2).

When his thoughts returned to mathematics, Chen Zhou obviously showed more self-confidence.

Although physics is already far ahead of Lv6, it is unattainable by other disciplines.

But in front of the big brother of mathematics at Lv7, physics still has to be a little brother.

This is also the source of Chen Zhou's self-confidence.

In any case, mathematics is the cornerstone of natural science, and it is also one of the cornerstones of Chen Zhou.

As for why it is one.

Chen Zhou feels that even if linguistics is unreliable, it still needs to be counted as another cornerstone.

[Π(q^2)=i∫d^4xe^(iq·x)0丨T{(JG(x),JG(0)}丨0]

[where JG(x) and JG(0) are the interpolation of the rubber ball, and q is the four momentum of the interpolation......】

This formula contains the basic idea and calculation method of QCD summation rule.

To put it bluntly, valence quarks in the quantum chromodynamic vacuum will only slightly perturb the vacuum.

Hadron properties depend on how its valence quark interacts with typical vacuum fluctuations.

Vacuum fluctuations, on the other hand, can be represented by several types of condensation.

Like what quark pair condensation, two gluon condensation, mixed coagulation, etc.

However, in the actual calculation, it is enough to consider some low-dimensional condensation in the expansion according to the product of the operator.

Chen Zhou wrote out the QCD summation rule, and the starting point is the formula of the two-point correlation function.

According to the basic ideas and calculation methods in this, I deduced it again.

Looking at his perfect derivation process, Chen Zhou couldn't help but show a smug look.

"Sure enough, a good physicist must be a good mathematician. And a good mathematician is called a good physicist every minute......"

Of course, these words only flashed through his mind for a moment.

He was just thinking about it.

Don't be serious......

Chen Zhou is not an arrogant person after all.

All his feel-good about himself would only come out for a moment.

Then, he will be pinched off immediately.

After all, the grades of so many disciplines in the system are clearly telling him.

You're not even close!