Chapter 379: Out of the Customs

Before being modified by genetically optimized agents, Pang Xuelin rarely conducted research in real-world retreat.

On the one hand, the real-world time flow rate is 1:10,000 on the sci-fi plane, and it doesn't make much sense to retreat in the real world.

On the other hand, Pang Xuelin knows that his talent is at best because of the good study habits cultivated by his grandfather since he was a child, coupled with his own persistent efforts, he was able to complete his doctoral studies at the age of 22.

However, after the transformation of genetic optimization agents, Pang Xuelin's memory and neural reaction speed have been greatly improved.

From the perspective of intelligence, it has stood at the pinnacle of human existence.

So, this time, he wanted to see how far he could go when he threw himself into a research project.

Pang Xuelin rebuilt a small study in the basement of the riverside villa.

Inside there are beds and bathrooms are complete.

For the next month or so, Pang Xuelin ignored what was going on outside the window, and stayed in the study every day to do research.

When he is hungry, someone will naturally bring him food, and when he is rancid, he will think of going to take a bath and then change into clean clothes.

He doesn't know the passage of time, and every day exists only in his own world.

He mainly focused on the content about quantum computers brought back from the world of rural teachers, and the technical materials related to electromagnetic catapult space launch systems and aerospace planes brought back from the world of dark forests.

In the field of quantum computers, from various quantum logic components to physical implementation, from quantum from the physical limit of information processing to quantum algorithms, from quantum error correction to quantum coding, from the decoherence of macroscopic objects to the classical reduction of the quantum universe......

Electromagnetic space launch systems and aerospace aircraft, from ultra-large capacity energy storage systems to large linear motors, from space life cycle support systems to high-thrust Hall thrusters, from space-grade carbon-based chips to orbit design, from launch control systems to supercomputers based on carbon-based chips......

There are not only basic physics, chemistry, mathematics, information science, biology, basic medicine, but also engineering content.

These papers are not real-world hydrology, and each one is enough to make a breakthrough in some professional field or open up a new research direction.

These papers took root in Pang Xuelin's mind one by one, although there were many papers that Pang Xuelin couldn't understand at once, but when he integrated these knowledge into his mind, it greatly expanded Pang Xuelin's cognitive boundaries.

And after such a retreat, Pang Xuelin has a deeper understanding of how to improve the electromagnetic space launch project in the real world planning.

Of course, in the field of superconductivity, Pang Xuelin is not without gains.

Of the hundreds of papers he has read, nearly 10 are related to superconductivity.

Two of these papers attracted Pang Xuelin's attention, one was "Unconventional Superconductivity and Quantum Criticality in Heavy Fermion Compounds", and the other was "Superconductivity in Microwave Irradiation of Two-Dimensional Electronic Systems".

The so-called heavy fermion compounds in the first paper are generally intermetallic compounds based on lanthanides and actinides, often with unfilled f-electronic shells.

In this kind of material, due to the hybridization of local F-layer electrons and conduction electrons, the effective mass of the carrier increases sharply, which can reach more than 1000 times that of free electrons, so it is also called heavy electron compound.

German. It is this material that the pressure confirmed by Drozdov's team is 1 million Earth atmospheres, and various hydrogen-rich lanthanide metal hydrides turn into superconductors at around 250 K.

The unconventional superconductivity and quantum critical behavior of heavy fermion compounds exhibit many characteristics similar to those of copper-oxide high-temperature superconductors, but their physical descriptions go beyond the classical Landau Fermi liquid theory and the traditional theoretical framework of BCS superconductivity theory.

In this paper, the scientists found that there are two different superconducting states in the CeCu2Si2 material, the low-pressure superconducting phase is similar to other heavy fermion superconducting states, and a new high-voltage superconducting state appears near the valence electron quantum phase transition point.

At the point of magnetostrictive superconducting quantum phase transition, the Wiedemann-Franz law, which is commonly followed in metals, is broken in the heavy fermion superconductor CeCoIn5.

In addition, there is experimental evidence that a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting phase, which was theoretically predicted in the 60s of the 20th century, may exist in the vicinity of the critical magnetic field on the CeCoIn5 superconductor.

Below the upper critical magnetic field, CeCoIn5 exhibits a rich flux phase diagram and cannot be described by the traditional Abrikosov flux lattice model.

When the antiferromagnetic phase of CeRhIn5 was gradually suppressed by pressure, scientists found that the magnetostrictive quantum phase transition occurred in the superconducting phase.

Based on this evidence, it is sufficient to show that the formation of heavy fermion superconductivity is closely related to spin fluctuations.

In this paper, the scientists also give the many-body wave function in the strong correlation model of heavy fermion compound materials, trying to derive a definite superconducting state by solving the completely rigorous solution in the multi-wave body function.

In another paper, "Superconductivity in Microwave Irradiation in Two-Dimensional Electronic Systems", the scientists' findings are basically the same as those of Cao Yuan, and the superconductivity phenomenon was also found in the two-dimensional electronic system composed of graphene.

However, the difference between the two is that what Cao Yuan and others discovered was the superconductivity of graphene's two-dimensional electronic system by low temperature and changing the electric field strength.

In this paper, scientists achieve superconductivity in two-dimensional electronic systems by cryogenic temperatures and varying the intensity of microwave irradiation.

After further investigation, the scientists found that the two-dimensional electronic system exhibits a novel magnetoresistive oscillation under a lower magnetic field far from the quantum Hall state, and its periodic structure can be characterized by the ratio of the microwave frequency ω and the cyclotron resonance frequency ωc (Landau level interval) ε≡ω/ωc: when the ε is about an integer (ε≈n), it corresponds to the oscillation peak, and when the ε is about a half integer (ε≈n +1/2), it corresponds to the oscillation valley.

Compared to the magnetoresistance without microwaves, the contribution of microwaves to magnetoresistance is positive at the oscillation peak and negative at the oscillation valley. Further experiments show that as the sample becomes more and more pure, the oscillation caused by microwave becomes more and more the dominant feature of the magnetoresistance of the sample, and the resistance value of the oscillation valley becomes smaller and smaller, and has a tendency to become zero.

Eventually, scientists observed on a very pure sample that the resistance value of the magnetoresistive oscillation valley under microwave excitation tends to zero exponentially as the temperature decreases, which is the phenomenon of superconductivity of a two-dimensional electronic system irradiated by microwaves.

The superconductivity phenomenon of graphene two-dimensional electronic system in both electric field and microwave irradiation, as well as the connection between the formation of heavy fermion superconductivity and spin fluctuations, made Pang Xuelin faintly feel that there is a mysterious internal connection between the two.

But before he could figure out the connection between the two, there was a knock on the door that had been closed for many days.

Pang Xuelin was stunned for a long time, and then remembered that before he entered the state of retreat, he had told Zuo Yiqiu to ask her to come to him on December 8.

During this period of research and thinking, Pang Xuelin didn't have much concept of time at all, and all his attention was on those papers.

Three meals a day and a change of clothes are exchanged through a small window.

"Hey, it's been a long time since I've been in such a state of research, and it feels so good, but it's a pity that time flies too quickly."

Pang Xuelin stood up from the desk and stretched out.

He only experienced this state of research when he was working on nonlinear partial differential equations in the Martian world and the wandering earth world.

Perhaps because of the genetic optimization agent, after thinking for more than a month, Pang Xuelin did not feel much tired, but was full of energy and energy.

He walked to the door, opened the door, and saw Zuo Yiqiu, Yao Bingxia, and Qi Xin standing at the door, looking at him worriedly.

"Xiao Xia, Ah Xin."

Pang Xuelin nodded at Yao Bingxia and Qi Xin with a smile, turned his head to Zuo Yiqiu and said, "Xiao Zuo, it's December 8th so soon?" ”

Zuo Yiqiu looked at Pang Xuelin with some shock.

If before, she only admired Pang Xuelin's academic ability and extraordinary talent, then now, for Pang Xuelin, she faintly felt a sense of awe.

She never imagined that a scientist with such a high status could lock himself in a small room and not have contact with the outside world for more than a month in order to engage in research.

Even ordinary people are locked up like this, I'm afraid they have to go crazy.

But although Pang Xuelin has been in retreat for so long, in addition to his beard and hair, his hair has grown a lot, but the whole person looks radiant, especially those eyes, which are as bright as stars.

Zuo Yiqiu said: "Pang ...... Professor Pang, we are flying to Stockholm at half past eleven this evening, and it is now nine o'clock in the morning, so we are almost ready to start preparing. ”

At this time, Yao Bingxia on the side covered her nose and said, "Brother Xiaolin, how long have you not taken a bath?" ”

Pang Xuelin sniffed himself left and right and said, "It seems that it was more than ten days ago, I also forgot, there is no smell." ”

Qi Xin smiled: "You don't stink yet, I smell a bad smell from afar, go, hurry up and take a bath, shave your beard, and take care of your hair later." In addition, Xiao Xia and I helped you choose several sets of tuxedos to attend the Nobel Prize ceremony, and we will change into them later. ”

As he spoke, the two women, one left and one right, pulled Pang Xuelin in addition to the basement.

……

The bath is a bit long.

First, Pang Xuelin went back to the bathtub in his bedroom to take a bath, and then it seemed that something was missing, Yao Bingxia was pulled in, and then something was missing, and Qi Xin was also pulled in.

By the time Pang Xuelin and the three of them came out of the room, it was already lunch time.

Zuo Yiqiu looked at the faint pink on Yao Bingxia and Qi Xin's faces, and couldn't help but complain in his heart: "Shameless." ”

In the afternoon, Pang Xuelin first went to do a hairstyle, and then with the help of the third daughter, he began to try various styles.

Five sets of regular clothes and three sets of dresses, just trying on clothes, it took Pang Xuelin three or four hours of time, which is more tiring than Pang Xuelin's research papers.

But including Zuo Yiqiu, the three daughters were a little tired of it, and even talked about Pang Xuelin's dress on the side.

In the evening, his parents and grandparents rushed over, which was Pang Xuelin's group of relatives and friends attending the Nobel Prize ceremony.

Yao Bingxia, Qi Xin, Zuo Yiqiu and Zhou Chen will also follow.

At six o'clock in the evening, everyone finished dinner in the villa, and then boarded the mighty motorvoy to Jiangcheng International Airport to meet with Kirton Walker's team.

In addition to Corton Walker and his two children, Xu Xincheng, president of Jiang University, some members of the lithium-air battery project team, the Ministry of Foreign Affairs, the Ministry of Science and Technology, and the Chinese Academy of Sciences were all accompanied by people attending the Nobel Prize ceremony.

In addition, there were accompanying media reporters.

CCTV News reporters even began to broadcast live online when Pang Xuelin and the others arrived at the airport.

On Weibo, more than 30 million netizens watched the live broadcast simultaneously.

"Haha, come and check in, I can finally see with my own eyes how to get the Nobel Prize?"

"To be honest, I don't know why, last time Mr. Tu won the award, I didn't have this feeling of excitement, maybe it was because Mr. Tu's achievements were decades ago, but I was very excited to see Professor Pang go to receive the award this time."

"Same as above, thanks to Professor Pang. In a few months, the Golden Dragon battery will be officially launched, and I am saving money to get a Golden Dragon battery mobile phone, and when the time comes, I can finally play with the mobile phone without looking at the power. ”

"I hope you don't forget Professor Kirton Walker, this time two Chinese won the award at the same time."

"Yes, Professor Pang deserves respect, and so does Professor Kirton Walker!"

"I saw Miss Qi Xin, so beautiful......"

"I'll go, the two girls behind Professor Pang are also super beautiful......"

"Is this the so-called Yan Ruyu in the book?"

"To be honest, I'm sour......"

……

It wasn't until the time I got on the plane that this huge live broadcast was interrupted.

The crowd entered the airport through the VIP channel and boarded a chartered flight from Air China.

Thirteen hours later, it was not until half past eight a.m. local time on December 9 that Pang Xuelin's special plane arrived at Stockholm Arlanda International Airport.

The airport was greeted by Lars Heikensten, President of the Nobel Foundation, and Herbert Green, Chairman of the Nobel Prize in Chemistry Jury.

After a few moments at the airport, head straight to the Stockholm Grand Hotel in the heart of Stockholm.

It's winter in Sweden, and even though it's almost nine o'clock in the morning, it's still dark, with snowflakes falling from the sky and street lights on street corners.

At the door of the hotel, reporters from major media around the world have been waiting for a long time, and when Pang Xuelin and his convoy arrived, the flashing lights rang out even more.

Pang Xuelin and his family stayed directly in the presidential suite of this hotel, while Zuo Yiqiu and Zhou Chen, their entourage, lived in the executive suite downstairs.

The next day, Pang Xuelin and the others mostly rested in the room to reverse jet lag.

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