Jinling, Institute of Cosmos, Ye Fei's Office!

Ye Fei is sitting in his office chair at the moment, looking at the computer screen, browsing the Stack Exchange, and checking out what scholars around the world have to say about his recent research.

Because of Ye Fei's multi-universe interpretation, scholars around the world have discussed a lot.

In the Quantum Mechanics section of the Stack Exchange, five out of ten posts talk about multiverse interpretations.

After a long time, Ye Fei, who was close to the computer screen, leaned back and chuckled: "It seems that the multi-universe interpretation I proposed is very popular!" ”

"As the Israeli physicist Siphivo House said, I'm just assuming that parallel universes exist."

"But that doesn't mean I admit that parallel universes exist."

"There's an essential difference."

"It's just that some people insist that I admit the existence of parallel universes, which are represented by scholars from the Northern Beauty."

"And I assume the existence of parallel universes, and I do not admit that parallel universes really exist, which is represented by some scholars in Europe and most scholars in Asia."

Whether Ye Fei's interpretation of the multiverse acknowledges the existence of parallel universes is not different academically, but there is a difference in other positions.

As mentioned earlier, a scholar like Ye Fei must not say anything nonsense, otherwise it will trigger world public opinion.

If Ye Fei admits the existence of parallel universes, it will have a certain impact on his personal reputation.

Unless, of course, Ye Fei proves the existence of parallel universes by scientific means.

But at that time, it was not that Ye Feicheng did not admit the existence of parallel universes, but a civilization war related to the survival of the entire earth.

At this time, there was a knock on the door outside, and Ye Fei said, "Please come in!" ”

The assistant pushed the door in, walked in front of Ye Fei, and said, "Dean, Director Yang from CCTV just called, I hope to talk to you on the phone." ”

Ye Fei said with some confusion: "Why didn't he call me?" ”

Director Yang is the director of CCTV TV, and Ye Fei and he have known him for many years.

After all, many of Ye Fei's interviews were conducted by CCTV.

Director Yang has Ye Fei's phone, but the two rarely talk on the phone, only when Ye Fei wants to be interviewed, Director Yang will call Ye Fei in person.

The assistant said, "He said your phone was turned off. ”

"Shut down?" Ye Fei took out his mobile phone from his pocket in confusion, and then saw the black screen of the mobile phone, he pressed the power button to display a sign of low battery.

Ye Fei smiled bitterly: "It turns out that the mobile phone is turned off when it is out of power." ”

After speaking, he looked up at the assistant and said, "Okay, I know, you go out!" ”

"Okay, Dean!"

After saying that, the assistant walked out.

After the assistant left, Ye Fei found the charger from the desk drawer, plugged the charger into the socket on the side, charged the mobile phone, and then turned it on, and saw Director Yang calling him five or six missed calls.

Immediately, Ye Fei called Director Yang and said with a smile: "Director Yang, I'm sorry, my phone is out of power and turned off, and I haven't noticed it myself." ”

"I'm so sorry!"

Director Yang smiled: "It's okay, you're busy, it's normal to forget to charge your phone." ”

Ye Fei said: "Director Yang, I don't know what you are looking for me?" ”

Director Yang said: "Academician Ye, I want to invite you to give a lecture on this program, do you see if it is feasible?" ”

Director Yang was just holding the attitude of giving it a try, and he wasn't sure if Ye Fei would agree.

Because in the past, Ye Fei once turned down to participate in the show.

But this time he invited Ye Fei again because Director Hao, who hosted the show, begged him three times and twice.

Coupled with Ye Fei's current popularity, if Ye Fei comes to participate in the lecture, the ratings of the show will definitely explode.

Therefore, he extended an invitation to Ye Fei again.

Yang Taichang said: "Academician Ye, there are many famous domestic scholars who have come to participate in the lecture, such as Mr. Yau Chengtong, as a leader of the young generation in China, the only winner of the Fields Medal in Xia Kingdom, and the second person in the world to prove the eight conjectures of mathematics. ”

"You should come to the lecture, which is very uplifting for the young people of our country."

Before Ye Fei's call, Director Yang had already prepared a draft.

People like Ye Fei are not short of money, fame, status and rights, so they can only start from a patriotic heart to move Ye Fei.

Ye Fei thought for a while and said, "Okay, when will you go to Kyoto to record the show?" ”

When Director Yang heard this, he was overjoyed and said with a smile: "What do you think about next week?" ”

"Okay, what time is next week?"

Yang Taichang said: "The time is arbitrary, you decide." ”

Ye Fei thought for a while and said, "Then let's go at two o'clock in the afternoon next Friday!" ”

Originally, Ye Fei wanted to talk about next Sunday, but considering that the people on the TV station also have Saturdays and Sundays, he set the time for next Friday afternoon.

"Okay!"

After hanging up the phone, Ye Fei didn't take the matter of going to CCTV to record the program to heart.

Conference room!

The leaders of the various groups of the Institute of Space Studies sat in it.

At this stage, the Institute of Cosmos Research mainly studies quantum science, and there are many research fields in quantum science, so it is divided into many groups.

At the moment, they were chatting with each other.

After a while, Ye Fei pushed the door in and sat in the first seat.

When everyone saw Ye Fei coming in, they immediately shut up and stopped chatting.

Ye Fei glanced at everyone and said, "After this period of research on Schrödinger's cat, we have overcome some difficulties. ”

"Next, we need to prepare to conquer quantum decoherence!"

Quantum decoherence belongs to the category of quantum coherence.

Quantum coherence is some of the important quantum properties of quantum computers.

When Ye Fei was researching quantum computers, he also studied part of quantum coherence, but the research was not very complete.

After all, in order to develop a quantum computer as soon as possible, only the parts that would be most helpful were studied.

Therefore, it is impossible for Ye Fei to study all parts of quantum coherence.

Quantum coherence says that in a high-energy accelerator, an electron and a positron generated by energy both fly in opposite directions, and both are in a superposition of right and left spins when no one is observing.

Whereas, when making an observation, if the electron is observed to be in a state of spin to the right.

Then, the positron must be in a state of left spin.

This is because positrons and electrons are created out of nothing by energy and must obey the law of conservation.

That is, the state of the right-hand spin of the electron and the left-hand spin of the positron are correlated.

This is called quantum coherence.

The so-called quantum decoherence is that the quantum coherence of open quantum systems will gradually lose over time due to quantum entanglement with the external environment, and this effect is called quantum decoherence.

Quantum decoherence, in quantum science research, is a problem that has been plagued and cannot be solved.

If this problem is solved, the performance of quantum computers can be greatly improved.

In Schrödinger's study of cats, cats may be dead or alive, but it is also possible that cats are both dead and alive.

The third possibility does not exist in reality.

But in quantum science, there is.

Cats are both dead and alive, which is a quantum superposition state.

However, quantum superposition states only exist in the microscopic world, and the macrocosm does not exist.

The question of why quantum superposition states exist only in the microscopic world and not in the macroscopic world has long puzzled countless scientists.

Many scientists have found ways to explain this phenomenon by quantum decoherence, but the mystery has not been solved.

Ye Fei said: "Using quantum decoherence to explain the quantum superposition of cats in the microcosm and macrocosm can help us make Schrödinger's cat puzzle even further." ”

Everyone nodded slightly, this problem has existed in the scientific community for a long time.

A lot of people are using quantum decoherence to study Schrödinger's cat.

Ye Fei said: "Let me say one thing, to study Schrödinger's cat with quantum decoherence, we should start from the field of wave function of particles. ”

"It should be a feasible direction to study the entanglement between particles."

When they heard this, they all took out their notebooks and wrote them down.

You must bring a notebook to the meeting, and Ye Fei will say some constructive research directions at the meeting.

Every time Ye Fei said the direction, it was basically correct, and the number of mistakes was relatively small.

Even if there is a mistake later, a solution can be found quickly.

After the meeting, they began to devote themselves to the research.

Ye Fei was not idle, and also devoted himself to research together.

When Ye Fei and others invested in the research, the official website of the lecture program released a message, and the next issue will be the guest Ye Fei.

When they heard the news, there was an uproar on the Internet, and many netizens were overjoyed, especially young people.

Many young people are eagerly looking forward to having the privilege of being part of the audience.

However, the audience was invited by the program team, and it was difficult to become one of the audience.

For this reason, many people also called CCTV, hoping to invite them to become the audience of Ye Fei's lecture.

CCTV TV!

"Director!" A middle-aged man walked into Director Hao's office.

This deputy director is in charge of the lecture program, surnamed Hao.

And the middle-aged man is the director who started the lecture.

The director said excitedly: "Don't you know, since we publicized that Ye Fei would be the guest of the next issue, there was a heated discussion on the Internet, and many people wanted to be the audience of Ye Fei's issue." ”

"It's also on the hot search for this!"

When Director Hao heard this, he laughed and said: "With Ye Fei's current popularity, this phenomenon is normal, and I believe that the ratings will be very high by then." ”

The director nodded, "Yes." ”

Then, he asked again: "Director, shouldn't the price of Ye Fei's program advertisers be raised?" ”

"That's for sure." Director Haotai said: "Let the people from the Ministry of Commerce talk about this." ”

"Since Ye Fei is so hot now, let's take advantage of the situation to increase publicity."

"The hotter you get to this point, the better."

The director said: "That's for sure, I'll talk to the people in the Propaganda Department when I go back." ”

"Director, I think we should change the content of the show."

"Huh?" Director Hao looked at the director and said confusedly, "How do you want to change it?" ”

After pondering for a while, the director said: "I think in addition to Ye Fei's personal speech, we should also increase the interaction between Ye Fei and the audience." ”

"Since Ye Fei is a mathematician, let's do some math interaction."

"For example, let the audience ask some math problems and let Ye Fei solve them."

"Ye Fei asked some math questions and asked the audience to answer them."

"Of course, math problems are definitely no problem for Ye Fei, we need to remind Ye Fei not to come up with too difficult math problems."

"Also, the audience should invite undergraduates, master's students and doctoral students majoring in mathematics from prestigious universities."

"In this way, the mathematical problems raised by Ye Fei will not be impossible for them to solve."

Director Hao thought for a while and nodded: "Sounds good, you go back and make a plan for me to see." ”

"But don't embarrass Ye Fei in the show, even if the show doesn't do well, you can't embarrass Ye Fei."

"After all, Ye Fei is different from the guests we invited in the past."

"Ye Fei's fame and influence are very high in Xia Guo."

The director patted his chest and reassured, "Director, you can rest assured of this, I am measured." ”

Director Hao nodded slightly and said, "Okay, then you can do it!" ”

"Okay, Director." The director said.

With that, he turned to leave.

A few days later, the lecture invited students from the mathematics departments of the top 10 universities in the country to participate in the lecture.

Mizuki University, Male Dormitory!

Suddenly, there was a cheer from a dormitory: "I've been selected to give a lecture, I can go to the scene to watch Ye Fei's lecture." ”

I saw a boy in the dormitory shouting excitedly while jumping.

The other three roommates on the side all looked at him with envy.

After a while, the boy stopped jumping, looked at the three roommates with laughter, and said: "Brothers, don't be discouraged, when I go then, you give me your photos, I carry them with me, and I want black and white, which proves that I went, and you are equivalent to going." ”

The three "...... roll" threw books, shoes, or pillows at him.

The boy dodged left and right to avoid their attacks, and then ran out of the dormitory with his head in his arms, looked at the dormitory with his door frame, and said, "If you are envious, you will be envious, don't throw things to hit me!" ”

The three roommates looked at each other and said, "him!" ”

After speaking, the three of them rushed towards the boy, and when the boy saw this, he screamed and ran out.

This situation is playing out in the top ten universities in Xia Kingdom.

Let's start the lecture, choose three people from each of these schools, a total of 30 people.

There is one undergraduate, one master's, and one doctoral student in mathematics, and these people have the best grades in the school.

Jinling, Institute of Cosmos, Laboratory!

Ye Fei wrote down a set of formulas on the whiteboard.

[|Ψ>=|the first state of particle one>.|The first state of particle two> the first state of the environment>+|the second state of particle one>.|The 2nd state of particle 2 >|The 2nd state of the environment >+】

After writing the formula, Ye Fei put down the pen in his hand, looked at the researchers beside him, pointed to the content on the whiteboard, and said, "This is the structure of the wave function we recently studied. ”

"That is, superposition!"

"From this formula, it can be seen that each state is the multiplication of the respective states of all particles in the system and the environmental state, and then the superposition of all possible states of the whole wave function ......"

Friday!

Ye Fei took a plane to Kyoto, and when he got out of the airport, a middle-aged man and a young man walked up.

The middle-aged man smiled: "Academician Ye, I am the deputy director of CCTV, my surname is Hao, and this is my work card." ”

As he spoke, Director Hao took out the work card from his pocket and showed it to Ye Fei.

Ye Fei glanced at it, stretched out his hand with a smile, and said, "Hello, Director Hao." ”

It doesn't matter if you don't get a work permit, people like Ye Fei are surrounded by invisible corners, and there are many people who protect him 24 hours a day.

Besides, this is Kyoto in the summer country, and the security here is the best in the summer country, and even a mosquito can't fly in.

Starting from Ye Fei Luodi Kyoto, all his trips are being monitored.

If there is any abnormality, the security of the whole of Kyoto will be dispatched.

"Hello, hello, Academician Ye!" Director Hao stretched out his hands and shook hands with Ye Fei very warmly.

People like Ye Fei have too high a status in the Xia Kingdom, and there are too many people who want to slap him.

Director Hao was naturally enthusiastic about Ye Fei.

Haotai said: "Academician Ye, let's go!" ”

"Hmm!" Ye Fei nodded slightly.

After speaking, the group walked to the parking lot, got in the car and left.

When Ye Fei left, a young man next to him said in hindsight: "That one just now is Ye Fei!" ”

The female companion next to her looked at the car that was moving away, and said in surprise: "It seems to be so!" ”

The young man slapped his face with regret and said, "...... I forgot to sign it, Ye Fei's signature is very commemorative. ”

(End of chapter)