It seems that there is no regret in the world that the medicine is sold. In order to continue educating her, Professor Yang said: "Although it is not possible to change the history of Chen Qiuhe's cheating through delayed experiments, there is also an explanation in quantum mechanics called the multi-world interpretation MWI, or parallel universe, which I think can be used to make Chen Qiuhe deeply aware of the consequences of cheating in exams." ”

According to the interpretation of the Copenhagen School, when you make an observation, the object of observation, such as the electron in the electron double-slit experiment, is randomly selected and determined—that is, only one direction of projection remains, and the other projections disappear. "Disappearing" means that the process is irreversible, and you can't deduce what the superposition state looks like before the wave function collapses based on the results of the wave function collapse.

Scientist Everett said: The so-called wave function collapse is pure fiction. If there is any similarity, it is pure coincidence! If you look at the Schrödinger equation, it doesn't have a trigger mechanism for collapse, and the equation doesn't give the motivation and time for the collapse! The wave function of the Schrödinger equation has always been healthy, harmonious and sustainable, a particle has its own wave function, and objects composed of countless particles (such as Schrödinger's cat, experimental observers, etc.) also have their own wave functions, and our world can be represented by a larger wave function, which constitutes our world. It should be superimposed, it should be superposed, and it should interfere.

In a vast complex Hilbert space, there are countless possibilities and projections of a larger wave function, and our universe and our world are just one of its countless projections. Different projections correspond to different spatial dimensions, they are perpendicular to each other, isolated and isolated from each other, and no exchange of matter and energy takes place. All we can observe is a projection of our universe, which is only one of countless possibilities in the complex Hilbert space. Everything else may have happened, but it can only be observed in other projections or worlds, and we can't. This is the many-world interpretation of quantum mechanics, or MWI for short. According to this theory, the wave function is still Schrödinger's wave function, and it never collapses. Whether you observe or not, whether you observe with an instrument or perceive with consciousness, it evolves strictly according to the equation, and everything you see is in the grasp of the wave function. In every world, you are only in that projection, you can only observe a definite quantity, and you can't see anything outside the world. According to this interpretation, the world is determined, not random; The world is real, not ethereal; The world is objective and has nothing to do with consciousness!

As a result, you sit in front of a computer and look at a web page, and you are in a three-dimensional real space. However, there may be a cat running around in the very position where you are sitting, but you can't see the cat. This cat, let's call it "Schrödinger's cat", is in another world that we don't know about. This world has nothing to do with the world we live in, nothing to do with it. In your world, the Schrödinger cat is dead, and in another world, the Schrödinger cat may still be alive. In your world, Qin Shi Huang unified the Six Kingdoms, and in another world, perhaps King Zhao Wuling unified the Six Kingdoms.

"Chen Qiuhe, in the world you are in now, after you cheated, the teacher didn't arrest you, which doesn't mean that the teacher won't arrest you. According to the Schrödinger equation, there is always the possibility that the teacher will catch you. According to the many-world explanation of quantum mechanics, in another world, maybe you have already been caught. Professor Yang said.

"Can you take a look at me in another world who was caught cheating on exams?" Chen Qiuhe asked.

"It's hard to do. You can imagine the serious consequences of being caught, you in another world. Professor Yang said.

"If this explanation of quantum mechanics is correct, can these two different worlds communicate with each other?" Hu Kehao asked.

"I haven't tried, it may take extremely high energy to open a "wormhole" to enter. Professor Yang said.

A wormhole is a narrow tunnel that connects two different planes. In 1916, Austrian physicist Ludwig Flaim first proposed the concept of wormholes. In 1930, when Einstein and Nathan Rosen studied the gravitational field equation, they believed that instantaneous space transfer or time travel could be done through wormholes. Wormholes are everywhere in the cracks of time and space, and the smallest matter in the universe needs to be found to open the interface of the wormhole, and scientists predict that in the future, antimatter transmitters can be used to prop up wormholes and lead to the future or another world parallel to us.

In this laboratory, Professor Yang has a particle accelerator, but this accelerator cannot reach the energy needed to open the wormhole. Professor Yang thought of another way to let Chen Qiuhe see himself in another world. Professor Yang took them to the Magic Mirror Room, where there were eight mirrors, arranged in eight directions, including Qian, Kan, Gen, Zhen, Xun, Li, Kun, and Dui. Within the sensing range of the mirror, the mirror can illuminate the image of the fourth dimensional supernatural space, so the out-of-body soul of the woman who died in the car accident was illuminated that day. In the center of the eight mirrors, there is a larger mirror - Tai Chi Mirror, which controls the operation of these eight mirrors, and its principle is that Tai Chi gives birth to two instruments, two instruments give birth to four images, and four images give birth to eight trigrams.

Professor Yang opened the Tai Chi mirror and asked Chen Qiuhe to stand in front of him, and a green light shot at Chen Qiuhe from the mirror. Professor Yang recited the mantra, and a scene appeared in the Tai Chi mirror: In the examination room, the invigilator confiscated the note enclosed by Chen Qiuhe and immediately reported it to the school's Academic Affairs Office. The Academic Affairs Office investigated and verified the relevant situation, and finally determined that Chen Qiuhe cheated in the exam. According to the relevant rules and regulations of the school, Chen Qiuhe was ordered to withdraw from school. Chen Qiuhe's parents rushed to the school, begged the school leaders bitterly, and even knelt down to the leaders, the leaders were selfless and unmoved, and issued a red-headed document ordering Chen Qiuhe to withdraw from school, and the whole school reported it...... Chen Qiuhe hung his head, packed up his bed, and disappeared into the vast night of the campus......

"This is the real ......you in another world, derived from the Schrödinger wave function equation," Professor Yang said.

Chen Qiuhe couldn't help but shed tears and said: "Professor Yang, Teacher Hu, I was really wrong, I must reflect deeply, learn lessons seriously, and never cheat in exams again." I'll give you a deep review tomorrow......"