Chapter 194 There is a halo on the student’s head
In the lounge, Xu Qingzhou talked eloquently to the computer for 20 minutes, going over the main problems.
He could tell there was something wrong with a paper like this at a glance.
In fact, from the perspective of an undergraduate student, Senior Ren's paper was quite good, and it was obvious that she had put in a lot of hard work, but he couldn't pass the test.
At 4:30 in the afternoon, when the sun slanted into the corner of the lounge from the west, the small class ended.
Xu Qingzhou returned the laptop to Ren Xiaoling, "Okay, that's all for today, you can change it."
"Okay, thank you, junior." Ren Xiaoling nodded. When she looked at Xu Qingzhou, she felt that there was a circle on the junior's head, emitting an extremely bright light.
Xu Qingzhou was not idle. He sorted out the previously obtained data and performed visual processing, which required the use of Python, Origin software and MATLAB.
Before going on a business trip, he had briefly organized the data.
If we follow a normal subject experiment, this project will take at least half a year to complete. The preliminary data preparation alone will take a month, and various parameters will have to be gradually adjusted in the meantime.
For example, although the current equipment is not as advanced as the future, in experiments, he still used quantum optical frequency combs and ultrafast pulse shaping to prepare multi-component Einstein-Podolsky-Rosen guidance, and The vacuum compression is further improved to 5.0dB, and the compression degree after deducting loss is 7.0dB.
This alone is so far ahead that few laboratories in the world can produce it, and even if it can be produced, it will take a lot of time.
Another example is that in the end, the compressed light must be combined with balanced zero-beat detection to conduct an experimental demonstration of precise time delay measurement.
Every step is critical, and if you make the slightest mistake, you have to overturn it and start over.
Calculate it this way.
Xu Qingzhou couldn't help but feel a bit stunned. He could get it with less than 500,000 yuan, so the Institute of Physical Education got a big deal.
If he remembers correctly, next year, in 2016, quantum communication will be included in Xia Guo's 13th Five-Year Plan and become a national key project, so it is inevitable that it will receive strong support.
Things related to quantum communications will already receive attention this year.
When the time comes, there won’t be too many places where you can shine.
At present, the total cost of BiO and BO raw materials, experimental environment maintenance costs, and various other expenses is less than 100,000.
After the experiment is over, some points will be set aside to provide subsidies to Senior Sister Ren.
Xu Qingzhou shook his head, put aside these messy things, and began to focus on the matter at hand. First, MATLAB is used to simulate the relationship between crystal length and the compression characteristics of quantum optical frequency combs.
[%Plot the relationship between crystal length and degree of compression.
figure;
plot(crystal_lengths,compression_factors,'bo-');%Plot data points using blue circles and solid lines
xlabel('CrystalLength(mm)')】
With the computer humming, Xu Qingzhou took out the manuscript paper from his bag and calculated the data first.
If we take the zero-order supermode as an example, without considering the spatial walk-off effect, the noise expression is written as δS(±)(ω)=1±ηtotalρ4r0(1r0)2+(ω/γs)2
At the same time, in an office of the Institute of Mathematics, three blackboards were filled with complex calculation formulas.
Su Kewei silently filled the cups of the three professors with tea and carefully covered them. The demonstration team was mainly composed of Professor Gu, Professor Feng and Academician Wang. Dean Tao and he were helping with miscellaneous tasks, which was regarded as the logistics team.
After pouring tea for the three bosses, he took another breath, sat down at the table next to him, and copied down the formulas on the second blackboard. Although he couldn't participate in Professor Gu's argument, he was also following along with his calculations.
After 10 minutes.
Looking at the row of complicated formulas, Su Kewei's mouth twitched.
It’s so difficult!
Is this something a human being can write?
Moreover, there are more than twenty pages of formulas like this! Su Kewei was a little frustrated and said he was very shocked. Suddenly he thought of a sentence: The gap between people is sometimes like the gap between people and dogs.
No, no, no, yes, my junior fellow student is very powerful, but he is also a doctor. The reason for this situation is that this is not his research field at all.
So, it’s not normal, right?
While Su Kewei was comforting himself, Gu Zhizhong and the other three were still immersed in complicated calculations.
At this end, Professor Feng frowned slightly, stood up, and wrote a line of formulas from the paper on the blackboard. Staring at the formulas in front of him, he still had no idea, so he called to Academician Wang and Professor Gu next to him, "Lao Wang, Lao Gu, you Come and see this part.”
Professor Gu and Academician Wang both stopped their calculations and came to the blackboard.
"There's something familiar about the formula."
Looking at the calculations on the blackboard, Gu Zhizhong nodded and said, "However, the method is very novel and I have never seen it before."
"Yes, which variant of the formula I am considering." Professor Feng nodded, paused, and said uncertainly: "Dirichlet's theorem?"
Dirichlet's theorem is also a profound consequence of the distribution of prime numbers in arithmetic series, providing finer control over the distribution of prime numbers in specific arithmetic series.
But soon, Professor Feng denied himself, shook his head and said: "It doesn't look like it. There is no mention of the coprime positive integer a here."
Academician Wang frowned, thought for a while, pointed to the formula and said:
"Old Feng, here, it seems to be similar to the method used in the proof of Chen Jingrun's theorem (1+2) or (1-2), using E. Bombieri-A.I. Vinogradov theorem.
As he spoke, Academician Wang started writing on the blackboard.
∑max\(a.q)=1|π(x;q,a)-π(x)φ(q)|≤x
Beside them, Professor Gu and Professor Feng suddenly realized something.
Professor Feng sighed: "Yes, it is similar to Chen Jingrun's theorem. It is used so exquisitely. Just here, you can already feel the author's extraordinary insight and the use of the most advanced thinking methods of analytic functions and arithmetic geometry."
Professor Gu smiled softly, with the same look of wonder in his eyes. In addition, he could not restrain his pride.
Su Kewei: "."
I don’t understand it at all!
The same scene happened on the other side of the ocean, in Princeton. Three people stood in front of the blackboard and marveled.
"Oh, my God, these steps are so perfect!" Professor Mullen expressed excitement: "I have a hunch that this young man from Xia Kingdom can succeed!"
They have completed a third of the argument without any problems.
Professor Ruth: "How lucky we are to be able to witness the proof of two conjectures at the same time!"
The old man next to them was Gerrit Boyle, the man who had won Fields.
"Mathematics is indeed a game for young people."
The old man sighed with some relief at the same time: "I can already imagine that before long, the field of number theory will lead to a carnival, and the history of mathematics will definitely remember this great feat of his."
After sighing, the three of them sat down again and began to calculate their own responsibility.
After 20 minutes, an unwilling voice sounded.
"Shet, I have a problem again!"
(End of chapter)