Chapter 59 A chance encounter in the library (please order first!!!)
"Fifteen photons entangled?"
Beside the trail.
Hearing the word that came out of Academician Pan's mouth, Xu Yun's pupils suddenly shrank, and he lost his voice in an extremely rare moment:
"Director Pan, fifteen photons? Has the technical reserve of Liangxin Laboratory reached this level?"
Photon entanglement is a core indicator of the basic ability of quantum information processing. The more entangled photons that are manipulated, the quantum information processing ability will increase exponentially.
This thing has an academic name called multi-photon entanglement, which involves the concept of quantum teleportation.
It doesn’t matter if you don’t understand this sentence, there is a more straightforward explanation:
Quantum teleportation can be regarded as an infinite microscopic science fiction teleportation array.
Yes, it's the kind of teleportation array where you draw a circle and stand in it, and then after a burst of green light, you are teleported to another place.
Its principle is to transmit bit information out of thin air to another location through the entanglement relationship of photons in a classical channel, that is, in compliance with the theory of relativity.
A person or something can be regarded as a macroscopic object composed of countless microscopic particles. Therefore, as long as the technology is perfect enough, it is theoretically possible to decompose, transport, and reassemble a person.
Of course.
Quantum teleportation can only be said to be the prototype of a teleportation array. There is still a long way to go before a teleportation array can truly have the ability to teleport macroscopic objects.
12 grams of carbon atoms is 1 mole, or 6.023*10^23.
If a person weighs 60 kilograms, assuming it is all composed of carbon atoms, then there are approximately 5,000 moles of atoms, which is 3*10^27.
To describe the state of an atom, let's calculate it in terms of ten degrees of freedom.
Then to describe a person, one needs 10^28 degrees of freedom - few students who don’t understand the concept of degrees of freedom can convert this word into money, but what the cutting-edge now has is just a machine that transmits fifteen degrees of freedom. Just photons.
Assuming that World War III does not occur and there are no problems with the research direction, it may take 800 years for humans to have a teleportation array that meets standard cognition.
But in addition to this, there is also a technological singularity theory, which believes that the technological singularity will be reached in 2075. The current discussion of this view is so intense and sharp that Lily’s brain is about to burst.
At present, academician Pan's team has completed the entanglement of five-photon, six-photon, eight-photon and ten-photon for the first time globally.
At the same time, it is worth mentioning that photon entanglement is not a self-entertaining research like the so-called "World Champions Cup" in a certain mobile game, in which only locals participate. This project occupies considerable research resources in various countries and laboratories around the world.
For example, Alexei Kitaev, John Martinis, and Austrian physicist Peter Zoller, winner of the 2006 Dirac Prize, all lead research teams in this area.
Our country calls it quantum computing superiority, while Yingjiang calls it quantum supremacy. The leader is the famous Gu Ge.
Now that Academician Pan's team is about to launch a fifteen-photon entanglement experiment, how can Xu Yun not be excited?
As a practitioner in the physics industry in his previous life, he almost subconsciously wanted to agree to Academician Pan's invitation.
But when he was about to leave his mouth, he was stopped abruptly.
There is no other reason than that I am really not suitable to join this kind of team at this time.
At present, the technical barriers of the fourth generation imidacloprid have been broken through, and the fifth generation finished product is just ahead. Whether it is the patent transformation of research results, follow-up papers or even commercial derivatives, I am not allowed to get away at this time.
Not to mention the mysterious claustrophobic space, Xu Yun had a hunch that the next copy might not be opened very far away.
No matter whether it is the 1665 copy or other new time and space that will be opened at that time, as long as Xu Yun completes the relevant tasks, he will definitely get new rewards when he returns.
If you join Pan Shuai's team, it will be almost impossible to escape in the short term, and subsequent progress may be greatly restricted.
Therefore, after some internal entanglement, Xu Yun simply described the project he was working on to Academician Pan, and said apologetically:
"Director Pan, I may not be able to join your team this time."
"The fifth generation imidacloprid is also a good research direction."
After hearing what Xu Yun said, Academician Pan nodded slightly, but did not insist too much:
"In this case, I won't force you. Let's let you go for the time being. Mr. Tian has gained a good apprentice."
Tian Zhigang is 66 years old this year, and Academician Pan was born in 1970, so he can be called Mr. Tian.
Then Xu Yun briefly chatted with Academician Pan for a few words, and then the two separated and left.
Looking at Pan Shuai walking in the opposite direction, Xu Yun suddenly had another hunch in his heart: he might not be able to see Pan Shuai for a long time in the future.
Xu Yun then calmed down, turned around and continued walking towards the West District AED.
AED generally refers to automated external defibrillator in the encyclopedia, but on the HKUST campus, AED refers to the West Branch of the HKUST Library.
The AED of HKUST is 12 stories tall. The building appearance is L-shaped. The entrance is a very beautiful sunshade arch. You can often see a huge fat calico pig named Sanpang around. In addition, HKUST also has Dahua, who can solve Maxwell's equations, and Dabai, the master of Western District, who can push basic elements. It is said that the GPA of the cats in HKUST is above 3.8
Ahem, let’s get down to business.
The biological information Xu Yun was looking for was distributed on the first and eleventh floors. After using his card, he started to look up books on the first floor.
The location of biology journals and physics materials are located on the two nearby bookshelves. When Xu Yun came here, there were two girls standing shoulder to shoulder in front of the physics bookshelf, looking for some information.
The two girls seemed to be roommates or classmates, and they should have a good relationship. After seeing Xu Yun appear, they just glanced at each other briefly and continued to find the books they needed.
Xu Yun naturally had no idea about the two schoolmates who were complete strangers, so he started looking for books one by one from the left side of the bookshelf.
"Insect proteins specifically bind receptors."
Although there are electronic devices now that can be searched and consulted directly, Xu Yun still likes the feeling of holding a card and shaking it as a fan, searching for books in rows.
It's not that he is really hot, the wind blowing from the card is just like that. He just likes to hold it in his hand and play with it, just like some people like to turn their mobile phones around.
The two girls looked at the books from left to right, while Xu Yun looked from right to left. Therefore, soon, the two girls came close to each other back to back in the middle.
The library was very quiet at this time, and I don’t know if it was because I was a little tired of looking for books. One of the girls’ voices was not very low, and it reached Xu Yun’s ears clearly:
"Ning Ning, it's hard to find books describing Newton's life. This row used to be filled with theoretical books."
Xu Yun was not the kind of person who liked to eavesdrop on other people's conversations, but the word "Newton" in the girl's mouth subconsciously reminded him of the Maverick in the copy who loved to convince others with reason.
So his ears suddenly perked up and he turned his attention to the next door.
Facing the complaints from her companions, another taller girl smiled:
"Okay, okay, Yueyue, please stay with me for a while, and I'll treat you to a drink of Mixue Bingcheng later"
'Yueyue' sighed after hearing this, and rubbed her hands as if accepting her fate:
"Hey, okay, okay, I'll look for it with you again. Why are you so interested in Mr. Niu's life? You don't really believe that those pairs of Anta are products of the same era as Mr. Niu, right? Professor Lu Didn’t we all say it in the group yesterday? It’s just a little trick using substances similar to transition state esters of six-membered rings. It’s just to ridicule some people.”
"I just want to find some information to confirm. After all, it's a coincidence, isn't it?"
For some reason, when he heard this sentence, Xu Yun, who had his back to the two of them, seemed to see the tall girl's soft tone but firm expression in his mind:
"Yueyue, isn't it recorded in history that Yang Hui's Triangle was brought to England by an Eastern businessman, and it happened to fall into the hands of Newton, otherwise Yang Hui's Triangle would have been called Pascal's Triangle internationally, just because of Newton Only with this endorsement can this triangle be named after a Chinese person.”
Pat-
A crisp sound of books falling to the ground suddenly interrupted the conversation between the girl and her companion.
Fortunately, the location of this bookshelf is relatively remote, so it did not attract the attention of other people in the library.
After a moment, a surprised male voice came from behind:
"Classmate, excuse me, what triangle did you just say?" (End of Chapter)