Chapter 53: Schrödinger's Cat, Quantum Coherent States

Jinling, Academy of Science, Qubit Research Laboratory!

There are more than a dozen people sitting in the research room, and everyone is working intensively on the qubit part.

This is just one of the laboratories, and in the Academy of Sciences, there are dozens of qubit laboratories.

From time to time, people get together to discuss the research part.

Ye Fei was sitting by the window, also studying qubits.

It's been two days since he returned from the National Center for Quantum Research.

He did not tell everyone about the research of quantum computers in Beiliguo.

Even if it is said, it will only increase everyone's psychological pressure.

So, it's better not to say it.

Ye Fei looked at the content of the calculation in front of him, and said in his heart: "Particles are orderly and controllable, so the single, double, and three-particle systems in the quantum state can strongly affect other particles in this area. ”

The world of particles is like the universe, and every particle is like a planet.

The particles that have been discovered now are equivalent to the planets that have been discovered in the universe.

Undiscovered particles are equivalent to undiscovered planets in the universe.

There will be planet-to-planet influences.

For example, the sun has an effect on the earth, and the earth has an effect on the moon.

And the same is true between particles.

Particles can also have an effect on each other.

"Qubits exist in multiple states, 0, 1, and 2."

"They exist randomly in one of these states."

"But ......" Ye Fei's eyes lit up, and he was a little excited in his heart: "That's the previous statement, since the particles are orderly and controllable." ”

"The presence of qubits in states, then, is not random."

"It's known and controllable."

"Since qubits are controllable in three states, it can be partially demonstrated by a very famous study in physics."

"Schrödinger's cat!"

"Schrödinger's cat was talking about keeping a cat in an airtight container with a small amount of radium and cyanide."

"There is a chance that radium will decay, and if radium decays, it will trigger a mechanism to smash the bottle containing cyanide, and the cat will die."

"If radium doesn't decay, the cat will survive."

"According to the theory of quantum mechanics, since radioactive radium is in the superposition of decay and non-decay, cats should be in the superposition of dead cats and live cats."

"This cat, which is both dead and alive, is the so-called Schrödinger."

"And from the qubits, the cat dies to 0 and the cat lives to 1."

"According to the principle that particles are ordered and controllable, if you want a cat to die, it will die, if you want a cat to live, it will live, and even if you want a cat to rise from the dead, it can be done."

Although this sounds fantastical, in reality, it is impossible to raise a cat from the dead.

But this is science, and in the scientific world, it is possible to bring cats back from the dead.

"Of course, this is only conceptual."

"Bringing cats back from the dead is only part of the research that proves Schrödinger's cats."

"There is still a long way to go before we can prove all the problems of the century."

Schrödinger's cat is a quantum study that has had a great impact on many areas of quantum.

If Schrödinger's cat is proven, then humans can control the decay of particles and thus prove the existence of quantum superposition states.

The effect of quantum superposition states is to make two things that are far apart move instantaneously.

It's teleportation, not movement.

Teleportation, two things move without time.

For example, at 9 a.m., when A moves to B, the time is still 9 a.m.

And the interval between A and B is the distance from the North Pole to the South Pole, or beyond.

If quantum superposition is mastered, humans can be used in a variety of fields.

It may even be that a person's journey from the North Pole to the South Pole is only a matter of moments.

Ye Feixin said: "I should prove part of Schrödinger's cat now, which is more conducive to the research of quantum computers." ”

The corners of Ye Fei's mouth were slightly hooked: "I can find that the particles are orderly and controllable, Beili Kingdom shouldn't have discovered it yet!" ”

"Well, the quantum computer they developed is definitely not as good as ours."

"If we are developing quantum computers, we are developing the best."

"The quantum computer that we strive to develop will not be able to catch up with Beili for decades."

After thinking for a moment, Ye Fei said, "Schrödinger's cat? I don't have a deep understanding of this, so I should find some well-known physicists in China to study it. ”

Half a month later!

At the entrance of the Academy of Sciences!

Ye Fei stood straight at the gate, as if waiting for someone.

Moments later, a minibus stopped at the gate, and from above a group of people walked down, led by a middle-aged man in a black tunic suit.

Ye Fei stepped forward with a smile, stretched out his hand from afar, and said, "Academician Pan, welcome to the Academy of Science!" ”

Academician Pan shook hands with Ye Fei with a smile and said, "Academician Ye, I have admired my name for a long time!" ”

Ye Fei smiled: "I have also admired you for a long time!" ”

Academician Pan, whose full name is Pan Jianlei, is the father of Xia Guoquantum.

He is mainly engaged in the research of quantum optics, quantum information and quantum mechanical technology problem testing.

Vice President of Xia University of Science and Technology, academician of the Academy of Sciences and the Academy of Engineering.

Ye Fei asked the Department of Science and Technology for a group of quantum physicists half a month ago.

So, the Department of Science and Technology sent Fan Jianlei and some quantum physicists.

Academician Pan smiled: "Academician Ye, we also ask you to take care of me." ”

"Where!" Ye Fei smiled: "Help each other!" ”

Ye Fei looked at the rest of the physicists and said with a smile: "Everyone, please feel free to come to my place and treat this place as your home." ”

"In the coming days, I would appreciate your help."

"Academician Ye, I'm bothered."

Ye Fei said: "Let's go, I'll take you to dinner." ”

Ye Fei didn't take them to the hotel, but just had a meal in the cafeteria.

Everyone is not short of money, there is no lack of status, what delicacies have not been eaten!

In the afternoon, Ye Fei arranged for all of them to be in a room, which was where they would do their research next.

Ye Fei stood in front of the blackboard and wrote a bunch of formulas on it.

All the physicists sat on the stools below, looking curiously at what Ye Fei had written.

After a while, Ye Fei put down his pen and turned to face everyone: "Everyone, I went to the National Quantum Research Center some time ago and did a small experiment there. ”

Ye Fei pointed to the formula on the blackboard and said: "Through this formula, using the particle accelerator, it is found that the particles are orderly and controllable. ”

In an instant, there was silence below, and everyone looked at Ye Fei in shock.

After a while, Academician Pan smiled dryly: "Academician Ye, are you right, particles are orderly and controllable?" ”

Academician Pan has studied quantum science for decades and has never heard of particles being ordered and controllable.

Particle disorder is common knowledge in physics, and no one refutes it.

As for the particle-controllable, this is even more nonsense.

Ye Fei said: "I'm not wrong, particles are orderly and controllable. ”

In an instant, the people below all shook their heads.

They still can't believe it's true.

Particle disorder is a matter of common sense, but now they are told that particles are orderly and controllable.

It's like someone telling them one day that water flows backwards, that soil can be eaten, and that man can fly.

Ye Fei looked at everyone and didn't believe it, he knew that if he hadn't seen it with his own eyes, no one would believe it.

Ye Fei said: "I know you don't believe it, but please believe me, it's true." ”

"I can't lie to you about this, and I have no reason to deceive you."

Everyone thought about it, and it seemed to be so.

However, they still do not believe that particles are ordered and controllable.

It's just that, intellectually speaking, it is impossible for Ye Fei to deceive them.

Ye Fei lied to them and did not do any good.

But reason tells them that particles are indeed disordered and uncontrollable.

Both of these ideas are right, but both of them are opposites.

For a moment, they didn't know which idea to believe.

Academician Pan exhaled and said, "Academician Ye, we know that it is impossible for you to lie to us, it's just that the particles are orderly and controllable, how is this possible!" ”

"It's completely impossible!"

Ye Fei shook his head helplessly and said, "Okay, then I'll find someone to tell you!" ”

After speaking, Ye Fei took out his mobile phone and called Academician Yang of the National Quantum Research Center.

The phone was quickly connected, and after Ye Fei explained the situation, he added Academician Yang's WeChat and connected to the WeChat video.

Academician Yang stood beside the small particle accelerator and said, "I'll verify Academician Ye's statement now, and you will know after reading it." ”

Everyone nodded, Academician Yang and they all knew that when they used to do experiments, they would often use small particle accelerators, and they also knew Academician Yang.

Ten minutes later, the video shows the changes in the particles on the screen of a small particle accelerator.

Everyone's eyes widened in surprise, and they muttered to themselves: "This is actually true!" ”

Ye Fei saw everyone's surprised expressions, and the corners of his mouth smiled slightly.

Ye Fei said: "Everyone, believe it now!" ”

Everyone looked at Ye Fei in a daze.

Academician Pan asked, "Academician Ye, how did you do it?" ”

Ye Fei pointed to the formulas on the blackboard and said, "These are the formulas." ”

Everyone gasped in their hearts, which was really shocking.

Particle disorder is common knowledge in the physics world, but today Ye Fei broke this attempt.

If the particles are ordered, they can indeed be controlled.

This can also explain why Ye Fei said that particles are controllable.

Many people have a twinkle in their eyes.

If the particles are ordered and controllable, then many studies and proofs in the physics field can be solved.

Everyone clenched their fists excitedly.

They didn't expect to come here and encounter such a big surprise.

After a long time, after everyone calmed down, Ye Fei said: "As we all know, particles are orderly and controllable, which can help quantum states ......."

Ye Fei said a lot, and finally said: "I seconded you here to ask you to help me prove part of the problem about Schrödinger's cat, and then help me complete the research on the theoretical part of quantum computers." ”

Academician Pan nodded and said in a deep voice: "If the particles are ordered and controlled, it will indeed be of great help to prove Schrödinger's cat." ”

The rest of the people nodded their heads as well.

Ye Fei said: "Let me explain how this mathematical formula makes understanding orderly and controllable. ”

Everyone nodded, and their hearts were very happy.

They are looking forward to formulas that can make the particles orderly and controllable.

If they learn it, it will also be of great help to a lot of their own research.

In the next few days, Ye Fei explained the formula to them.

After the explanation, they began to prove Schrödinger's cat.

Academician Pan said: "Academician Ye, I want to prove Schrödinger's cat, and then help the quantum computer." ”

"Well, my suggestion is to start with quantum coherent states."

Quantum coherent states are a problem that physicists have focused on since the birth of quantum theory.

Academician Pan said: "The double-slit interference phenomenon is the most typical quantum interference phenomenon. ”

"In an interferometric experiment, if the particles are connected through two adjacent slits on the separator......"

“……”

"The physics community hopes to explore the nature of decoherence by studying the changes in quantum coherence in the process of microscopic objects to macroscopic objects."

“……”

"Water bears are so tenacious that they can survive for days when exposed to outer space."

"If it is put into an ultra-high vacuum experimental environment, it can remain alive, and then meet the requirements of people's research on the quantum superposition of living organisms."

"If this experiment is successful, it will be possible to prepare quantum superposition states that are very similar to the meaning of Schrödinger's cat."

"However, now Academician Ye can make the particles orderly and controllable."

"Then there's no need for a tardigrade experiment."

"It is entirely possible to prepare a quantum superposition state with a very close meaning to Schrödinger's cat through the double-slit interference phenomenon experiment of quantum coherent states."

"In this way, use Schrödinger's cat as a springboard."

"It is possible to prove not only qubits, but also the principle of superposition and quantum entanglement."

"This can greatly speed up the research on the theoretical part of quantum computers."

"And, most importantly, quantum coherence states themselves are very helpful for quantum computers."

"Without quantum coherent states, quantum computers would not be able to operate in parallel efficiently."

"So, starting with quantum coherent states has the benefit of killing multiple birds with one stone."

Ye Fei's eyes lit up when he heard this.

If it is really as Academician Pan said, starting with quantum coherent states does have the benefits of killing multiple birds with one stone.

Ye Fei was excited: "Sure enough, it was right to find them, most of the quantum theory research belongs to physical research." ”

"They have studied quantum science for many years and have accumulated a lot of experience, which is much better than my halfway monk."

Ye Fei said with a smile: "Academician Pan, your idea is really good, I couldn't have imagined it before." ”

Academician Pan smiled: "Hehe...... I also came up with this idea based on your idea of the order and controllability of the particles. ”

"If it weren't for your particle being ordered and controlled, this idea wouldn't have been possible."

The rest of the people nodded as well.

The orderly and controllable particles discovered by Ye Fei are simply earth-shattering events for quantum science.

Ye Fei didn't care, if it was someone else, he might have preached the world and competed for the Nobel Prize in Physics.

"Luck, haha......" Ye Fei laughed and said, "I was also lucky to find that the particles are orderly and controllable." ”

"Science is out of luck!" Academician Pan said seriously: "All scientific research is proof of strength. ”

"If you don't have the strength, you can't find things that others can't discover."

"That's it!" Ye Fei didn't want to talk about this topic, and said, "Since we are sure to start with quantum coherent states, let's start!" ”

Everyone nodded.

Next, Ye Fei's research began to start with quantum coherent states.

Quantum coherent states, also known as quantum coherence, or correlation between states.

Quantum coherence states are the study of the right and left spins of electrons.

Since it has been found that particles are ordered and controllable, it is of great help to the study of quantum coherent states.

This can greatly speed up the study of quantum coherent states.

As long as the study of quantum coherent states is successful, the establishment of quantum superposition states will begin.

After the quantum superposition state is successfully established, the qubits, the principle of state superposition and quantum entanglement are proved.

Eight months later!

Ye Fei said with a smile: "Since the successful establishment of quantum superposition states, sure enough, qubits, superposition state principles and quantum entanglement have quickly proved successful. ”

"Now only the most important puzzle of quantum computer theory remains."

"The Principle of Quantum Parallelism!"

The principle of quantum parallelism is the most important and difficult part of the theoretical part of quantum computers.

Ye Fei took a deep breath and said, "Time is faster than I imagined, if it weren't for Academician Pan's proposal to start with quantum coherent states, the speed would not be so fast." ”

"Next, I will specialize in the principle of quantum parallelism."

"Beili will develop a quantum computer in 2033, and at the current speed, we can just meet them."

"When the time comes, it will depend on who is stronger!"

Ye Fei's eyes were full of war.

Before developing a quantum computer, Ye Fei had no confidence.

But now, Ye Fei is full of confidence.

"The quantum computer developed by Beili is definitely not as good as mine."

"After all, I've discovered the regularity and controllability of particles."

"This is very helpful for the research of quantum computers."

"To put it bluntly, quantum computers are a demonstration of quantum research."

"Theory is more important than application."

"As long as the theory is good, the developed quantum computer will be even better."

"I don't believe that Beiliguo's quantum computer theory can do better than what we do."

"Your 5G, Web3.0 and Li-Fi can't beat us, and quantum computers won't beat us."

"In the field of quantum computers, you can't kill us."

"Then, in the next hundred years, science will be inclined to our Xia Kingdom."

Quantum computers, 5G, Web 3.0, and other technologies are the foundation on which the metaverse is built.

The metaverse is a technology that has completely changed the habits of human life, and it is even greater than the emergence of the steam engine.

(End of chapter)