"Fifteen entangled photons?"

By the side of the road.

Upon hearing the words uttered by Academician Pan, Xu Yun's pupils suddenly contracted, and he involuntarily blurted out:

"Academician Pan, fifteen photons? Has the technological reserve of the Quantum Information Laboratory reached such a level?"

Photon entanglement is a core indicator of quantum information processing capabilities. The more entangled photons are manipulated, the exponentially greater the quantum information processing capabilities become.

This thing has an academic name called "multi-photon entangled state," which involves the concept of quantum teleportation.

If you don't understand this sentence, there is a more straightforward explanation:

Quantum teleportation can be thought of as an infinitely microscopic science fiction teleportation array.

Yes, it's the kind where you stand inside a circle, and after a burst of green light, you are teleported to another place.

Its principle is to use the entanglement relationship of photons to transmit bit information out of thin air to another location through a classical channel - that is, under the premise of relativity.

A person or an object that can be considered as composed of countless microscopic particles, so as long as the technology is advanced enough, theoretically, it is possible to decompose, transmit, 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 with the ability to transport macroscopic objects is truly developed.

12 grams of carbon atoms is 1 mole, which is 6.023*10^23.

If a person weighs 60 kilograms and is assumed to be entirely composed of carbon atoms, then there are approximately 5000 moles of atoms, which is 3*10^27.

Let's assume that ten degrees of freedom are needed to describe the state of an atom.

So to describe a person, you would need a magnitude of 10^28 degrees of freedom - for classmates who don't understand the concept of degrees of freedom, you can replace this term with money, and what is currently at the forefront is only the transmission of fifteen degrees of freedom of photons.

Assuming that the Third World War does not occur and the research direction is correct, it may take humans 800 years to develop a teleportation array that meets standard cognition.

However, there is also a technological singularity theory that believes that the technological singularity will be reached in 2075. The discussion of this viewpoint is very intense and sharp, and Lili's brain is about to explode.

Currently, globally, the entanglement of five photons, six photons, eight photons, and ten photons has been completed for the first time by Academician Pan's team.

It is also worth mentioning that photon entanglement is not a research project that only involves the participation of the hometown, disguised as the so-called "World Champion Cup" in a certain mobile game. This project occupies a considerable amount of research resources in various countries and laboratories worldwide.

For example, Alexei Kitaev, John Martinis, and the 2006 Dirac Prize winner, Austrian physicist Peter Zoller, all lead research teams in this field.

In our country, it is called quantum computing superiority, while on Eagle Sauce's side, it is called quantum hegemony, led by the famous Gu Ge.

Now, Academician Pan's team is about to embark on an experiment of fifteen photon entanglement. How could Xu Yun not be excited?

As a practitioner in the physics industry in his previous life, almost subconsciously, he wanted to accept Academician Pan's invitation.

However, just as the words were about to come out, he stopped himself.

There is no other reason, just because he is not suitable to join such a team at this time.

The technological barriers of the fourth-generation pyrroloquinoline quinone have already been broken, and the fifth-generation finished product is just ahead. Whether it is the patent transformation of research results, subsequent papers, or commercial derivatives, he cannot afford to leave at this time.

Not to mention the mysterious enclosed space, Xu Yun has a feeling that the next opening of the instance may not be far away.

Regardless of whether it is the 1665 instance or other new time and space that will be opened, as long as Xu Yun completes the relevant tasks, he will undoubtedly receive brand new rewards upon returning.

If he joins Academician Pan's team, it will be almost impossible for him to leave in the short term, and the subsequent progress may be greatly restricted.

Therefore, after some internal struggle, Xu Yun simply explained his current research topic to Academician Pan and apologized:

"Academician Pan, I may not be able to join your team this time."

"The fifth-generation pyrroloquinoline quinone... that's also a good research direction."

After listening to Xu Yun's words, Academician Pan nodded slightly and didn't insist too much:

"Since that's the case, I won't force you. I'll let you off the hook for now. Tian Lao has indeed taken in a good disciple."

Tian Zhigang is 66 years old this year, while Academician Pan was born in 1970, so it is appropriate to call him Tian Lao.

Then Xu Yun had a brief conversation with Academician Pan and the two went their separate ways.

Watching Academician Pan walk in the opposite direction, Xu Yun suddenly had another premonition: he might not see Academician Pan for a long time in the future.

After that, Xu Yun calmed his mind and turned around to continue walking towards the AED in the west district.

AED generally refers to an automated external defibrillator in encyclopedias, but in the campus of the University of Science and Technology, AED refers to the west wing of the university library.

The height of the AED at the University of Science and Technology is as high as 12 floors, and the building has an L-shaped appearance. The entrance is a very beautiful sunshade arch. There is often a fat three-color cat named San Pang around, and there is also a big white cat who can solve Maxwell's equations and is the leader of the west district, known as Da Bai. It is said that the GPA of the cats at the University of Science and Technology is above 3.8...

Ahem, let's get back to the point.The biological materials Xu Yun was looking for were scattered across the first and eleventh floors. After swiping his library card, he began his search on the first floor.

The biology journals and physics materials were located on adjacent bookshelves. When Xu Yun arrived, two girls were shoulder to shoulder in front of the physics shelf, looking for certain materials.

The two girls seemed to be roommates or classmates, and they seemed to get along well. They glanced at Xu Yun when he appeared, then continued to search for their own books.

Xu Yun didn't have any particular thoughts about the two unfamiliar schoolmates. He started searching for books from the left side of the shelf.

"Insect proteins... specific binding receptors..."

Although electronic devices could be used for direct search and reading, Xu Yun still enjoyed the feeling of holding his library card and flipping through the books row by row.

It wasn't that he was really hot, the wind blown by the library card was just so-so. He simply liked to play with it in his hand, just like some people liked to spin their phones.

The two girls were searching for books from left to right, while Xu Yun was searching from right to left. Therefore, they quickly approached each other in the middle of the shelf, back to back.

The library was very quiet at this time. For some reason, one of the girls didn't lower her voice much, and her words clearly reached Xu Yun's ears:

"Ning Ning, it's so hard to find a book that describes Newton's life. All the books in this row are theoretical."

Xu Yun wasn't the type to eavesdrop on others' conversations, but the word "Newton" from the girl's mouth subconsciously reminded him of Little Newton, who loved to convince people with reason in the game.

Therefore, he immediately perked up his ears and turned his attention to the next shelf.

Facing her companion's complaint, the taller girl laughed:

"Relax, Yue Yue, just help me look a little longer. I'll treat you to a drink at Mixue Bingcheng later..."

Upon hearing this, 'Yue Yue' sighed and rubbed her hands resignedly:

"Alright, alright, I'll help you look a bit longer. But why are you so interested in Newton's life? You don't really believe that those Anta shoes are from the same era as Newton, do you? Didn't Professor Lu say in the group chat yesterday that it was just a trick using a transition ester similar to a six-membered ring? It's purely to mock some people."

"I just want to find some materials to confirm it. After all, it's quite a coincidence, isn't it?"

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For some reason, when he heard this, Xu Yun, who was back to back with the two girls, seemed to see the tall girl's gentle tone but determined expression:

"Yue Yue, isn't it recorded in history that the Yanghui Triangle was brought to England by an Eastern merchant and happened to fall into Newton's hands? Otherwise, the Yanghui Triangle would be called the Pascal Triangle internationally. It's because Newton endorsed it that the triangle is named after a Chinese person..."

Thud—

A crisp sound of a book falling to the ground interrupted the girl's conversation with her companion.

Fortunately, this bookshelf was relatively remote, so it didn't attract the attention of others in the library.

A moment later, a surprised male voice came from behind:

"Excuse me, what did you just say... about a triangle?"

......

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