The top student must be diligent.

Chapter 150: Good News from the Scientific Community
Yazdani left without looking back. He left in such a hurry as if he had found a treasure map and was in a hurry to verify its authenticity.

Looking at his appearance, Bhargava smiled, picked up the coffee in his hand and took a sip.

Well, it's time to let those scholars in other fields experience what genius is.

……

What happened to Yazdani is also happening to scholars in other related fields.

As Xiao Yi's paper came out, people who were studying materials or condensed matter physics all became excited.

This paper is obviously a big deal for scholars in both fields.

As long as this absolute electronic calculation model is feasible, it will be meaningful for the materials community to study various new materials, and can even guide the research on new material synthesis methods; and for condensed matter physicists, it can not only help study superconductors, but also be of great help in revealing some hidden mechanisms in condensed matter physics, etc.

As a result, more than 50% of scholars in these two fields began to study this new model.

Some scholars may be working on some very important projects and are willing to set aside time to conduct special research. Some scholars even suspend their own projects and devote all their energy to this.

And even more scholars have set up research projects directly based on absolute electronic calculations, ready to go all in.

Afterwards, good news began to come in.

We are from the Department of Materials Science at ETH Zurich. We mainly conducted tests on the copper oxide high-temperature superconductor La2-xSrxCuO4 (LSCO), mainly using AEC to calculate the electronic band structure, state density and Fermi surface characteristics.

The final result is that AEC predicts the superconducting transition temperature and superconducting energy gap of LSCO at different doping concentrations. The calculation results show that when the doping concentration x=0.15, T_c reaches 35K and the superconducting energy gap is 15 meV. Experimental measurements show that when x=0.15, the actual T_c of LSCO is about 36K and the energy gap is about 14 meV. The deviation between AEC's prediction and experimental results is within 5%.

When this result came out, our entire lab was shocked. We had never seen such an accurate computational material model.

【We are the Center for Complex Materials Laboratory at Princeton University. We focus on the topological insulator Bi2Se3, its surface states and spin-orbit coupling effects.

AEC predicts that the electronic band gap of Bi2Se3 is 0.35 eV, the surface state forms a Dirac cone at the Fermi level, and the spin splitting energy is 0.2 eV; while experimental measurement results show that the actual band gap of Bi2Se3 is 0.34 eV, and the spin splitting energy of the surface state is 0.19 eV. The deviation between AEC's prediction results and experimental data is within 3%.

Now our laboratory has decided that in the future, wherever computational materials science can be used, as long as AEC can be used, we will definitely use AEC. We are even planning to purchase a batch of servers. Although AEC does not require high computing resources, we feel that we will have to use it for predictions every few days in the future. 】

[… Iron-based high-temperature superconductor FeSe… The deviation between experimental data and calculation results is within 3%…]

[The heavy fermion compound CeCoIn5…can show obvious Kondo resonance characteristics at low temperatures, with a deviation within 5% from the experiment…]

……

Various experimental reports have been published, and the materials involved in each experimental report are quite complex, and almost all of them can be regarded as the most cutting-edge materials in contemporary materials science research, such as superconductors, topological insulators, heavy fermion compounds, etc.

It is also because of this that absolute electronic calculations have given more and more materials scholars enough confidence.

If it can provide such powerful precision even in the study of so many complex materials, then if it is used to study relatively simple materials, wouldn't it be a direct kill?
The entire scientific community is becoming more and more lively.

……

UC Berkeley.

When Professor Paul Alivisatos stepped into his classroom, it was already full of students.

As a strong contender for the Nobel Prize in Chemistry, his research in materials science and nanotechnology has always had a profound impact. It is for this reason that he was able to serve as executive vice president and provost at Berkeley. In fact, a few years ago, he also served as the director of Lawrence Berkeley National Laboratory.

In addition, he is expected to become the president of the University of Chicago after September this year.

Perhaps it is precisely because of these achievements and status that every one of his classes is always full of students who come to listen.

But what puzzled him a little was that after he walked into the classroom, he saw that his students seemed to be discussing something. "Ahem." He said, "Kids, what are you discussing?"

The students turned their heads and noticed that their professor had entered the classroom.

However, as a student at Berkeley, there is obviously no shortage of positive people.

Soon someone stood up and asked, "Professor, we are discussing the recent paper on absolute electronic calculation. Many people now believe that this method will have a profound impact on our materials science. We would like to know what you think?"

Paul Alivisatos was startled when he heard this question, and then he smiled with satisfaction and said, "I'm glad to hear that you have begun to pay attention to the cutting-edge achievements in the field of materials science."

"This shows me that you are really interested in materials science."

"Of course, before answering your question, I want to ask what do you think?"

After hesitating for a moment, the student said, "I think it can really provide great help for materials research. After all, quite a few laboratories have expressed their optimism about this method."

"Anyone else with a different opinion?" Paul Alivisatos glanced at the other students.

Soon another student stood up and said, "Professor, I don't think this method can bring about such a huge effect. It may be somewhat useful, but it will not be a decisive help. Just like you once taught us, materials science is an experimental discipline. How can something simulated by a computer replace the role of experiments? What's more, its author is just a mathematician, not a materials scientist."

Listening to the different opinions, Paul Alivisatos smiled and then said, "Very good, what you all said makes sense, so let's listen to my opinion."

"First of all, let me state the conclusion. I think absolute electronic calculation is indeed a revolutionary new thing for materials science."

"What's so disruptive about this? It may change our experimental habits in the future. Perhaps it won't be long before every laboratory group will habitually use this method to help their experiments when conducting research."

"John, you are right on this point." He glanced at the student who held an opposing opinion and said, "Materials science is an experimental science. This is an irrefutable fact. Materials calculated by computers can never become real, so absolute electronic calculations will not play a decisive role."

"However, as a scientist, we must be good at using a variety of tools, and we must use those good tools even more."

"Obviously, absolute electronicity calculation is such a great tool that can help us obtain more and better results in our research."

"Do you understand?"

Hearing the professor say this, the students present nodded thoughtfully: "I understand, professor!"

"very good."

Paul Alivisatos smiled and nodded.

But in the end, he looked at John again and said, "Of course, John, I still want to express my objection to your last statement."

"The author of the calculation of absolute electronicity is Xiao Yi, a brilliant mathematical genius and the prover of the twin prime conjecture. You may have heard of him."

"In his paper, he used mathematical methods to link the path integral to the prediction of electron behavior, and also incorporated another method in probability theory, called Markov chain Monte Carlo technology, into it. In addition, there are many advanced mathematical techniques reflected in it."

"These things can only be figured out if you are good at mathematics."

"So, don't underestimate mathematicians, especially talented mathematicians like Xiao Yi. Although the pure mathematics they research cannot help us, if they want to study some applied mathematics, it may bring about the current effect."

"Perhaps, I should strengthen your mathematical ability training?"

The students below immediately showed expressions of horror.

I really don’t want things like mathematics!

(End of this chapter)