Chapter 2 Schrödinger's Cat
"What the hell is a superpower......
Mirei Misaka picked up the teacup on the table and took a sip, letting the liquid slide over the tip of her tongue despite the high temperature but not burning her mouth, leaving only the aftertaste of green tea and a clean slight astringency in her mouth.
The room she was in now was Dr. Akimoto's office. During the doctor's absence, the control of the desktop computer was completely owned by the white-robed girl.
On the screen, with the rubbing of Meiling's right fingers on the touch screen, some materials in the library are scrolled.
It's not some inside story, inside information, or confidential information...... And so on,It's very basic.,Everyone in the school city can check it.,The basic knowledge of superpower development.,It can also be said to be the "common sense" part of this superpower city.。
"Schrödinger's Cat ......"
Misaka is no stranger to this theory, after all, she has another memory that does not belong in this world.
The half-dead and half-alive "Schrödinger's cat" is one of the famous grotesque images in the history of science. Along with it may be Zeno's tortoise, the elder, who can never catch up, Laplace's all-knowing old sage who predicts everything, Maxwell's witty control of entrances and exits, so that the fast and slow molecules gradually separate, the entropy of the system flows backwards, the twins who are dizzy by the theory of relativity, and can't tell who is the elder brother and who is the younger brother, and so on and so forth......
"Poof~ cough cough...... 'Reality will be distorted according to the different thoughts of the people you see'? Is the 'Schrödinger's cat' in this world actually used to illustrate this......"
Mirei Misaka couldn't help but squirt out the tea, and then began to cough constantly.
This is completely different from the "Schrödinger's cat" in her memory, and it can even be said to be a far cry.
The experiment of "Schrödinger's cat" in memory was entirely proposed by Schrödinger in order to oppose the Copenhagen theory in quantum physics.
The Copenhagenists say that before the measurement, the state of the elementary particles that make up matter is ambiguous and in a mixture of possibilities, such as a radioactive atom, when it decays is completely probabilistic. As long as it is not observed, it is in a superposition of decay or non-decay, and only when it is measured can it randomly choose a state and appear.
I can't help but admit that this sounds very strong in the flavor of subjective idealism. Although it is actually different from the philosophical theory as it is commonly understood, it is very similar to the famous words of Bishop George Berkeley: "To be is to be perceived" (Latin: Esse EstPercipi).
If this sentence were to be changed slightly to "to exist is to be measured", it would be close to the meaning of the Copenhagen school.
"There is no such thing as an objectively independent world when there is no observation."
Mirei Misaka still remembers the feeling of being shocked to the point of despair when she first came into contact with quantum physics.
Once upon a time, there was a child who was convinced that physics had conquered the world.
From junior high school to high school, the child saw that the ancient castle of Newtonian mechanics had been great and strong through the years of weather, and that everything from the planets in the sky to the stones on the earth would respectfully follow the rules it had made, and the discovery of Neptune was one of its greatest victories; In terms of optics, the new electromagnetic theory extended its glory to the entire electromagnetic world; In terms of heat, the three laws of thermodynamics, the theory of molecular motion, and statistical thermodynamics are so scorching that people dare not look at them directly.
What's even more amazing is that all of this is in line with each other and inclusive of each other, forming a grand alliance of classical physics. Classical mechanics, classical electrodynamics, and classical thermodynamics (plus statistical mechanics) form the three pillars of the physical world. They are tightly combined to form a magnificent and majestic temple.
The boy felt that the power of science was so powerful, so fascinating, that the mystery of God's creation was completely grasped by mankind, and nothing was left behind.
Because almost all the physical phenomena known can be explained from ready-made theories. Force, heat, light, electricity, magnetism...... Everything is under control, and in the same way.
"All the fundamentals of this world have been discovered! As long as we have enough detailed data, whether it is tomorrow's weather or the shape of the universe in 100 million years, human beings can calculate it exactly! ”
The kid didn't hesitate to choose physics as his college major.
"I want to touch the truth of this world......"
The kid got his wish and got into the school of his choice. As soon as he entered the school, he couldn't wait to get into the school library, wanting to get in touch with the "truth of the world" as soon as possible.
But what that kid learned was what broke his dreams.
The kid even thought more than once about how nice it would have been if he hadn't gotten his hands on quantum physics in the first place.
The destructive power of quantum physics is quite staggering. Among the three core principles of probability explanation, uncertainty principle and complementarity principle, the first two destroy the causality of the classical world, and the principle of complementarity and uncertainty work together to destroy the objectivity and reality of the world.
The weather can never be predicted, and the universe takes on a different shape randomly every second......
The more I studied, the more I felt that not only was the truth moving away from me, but even the world that originally existed objectively and truly became fragmented.
When the kid was on the verge of going crazy by the bizarre quantum theory in the library, he finally found a savior.
Schrödinger's cat.
When he first saw Schrödinger's 1935 paper entitled "The State of Quantum Mechanics", the child felt that the objective, real, causal world that Einstein believed in had finally been redeemed.
In section 5 of the paper, Schrödinger describes the cat experiment, which is often seen as a nightmare:
Well, the Copenhagen school says that before the measurement, the state of a particle is blurred, and it is in a mixture of possibilities, right? For example, if a radioactive atom decays, it is completely probabilistic when it decays. As long as it is not observed, it is in a superposition of decay/non-decay, and only when it is measured can it appear in a random state.
Very well, so put this atom in an opaque box and let it stay in this superposition. Now Schrödinger imagined an ingenious and sophisticated device that would trigger a chain reaction every time an atom decayed and released a neutron, culminating in the breaking of a poison gas cylinder in a box with a poor cat in it. The thing is obvious: if the atom decays, then the gas cylinder is broken and the cat is poisoned. If the atoms had not decayed, then the cat would have lived well.
Naturally, when they are all locked in a box, that atom is in a decay/non-decay superposition because no one is watching. Because the state of the atom is uncertain, so is the state of the cat, and it is only when people open the box and look at it that the matter is finally conclusive: either the cat lies dead in the box on all fours, or it meows alive. The question is, what state was the cat in before people opened the box? The only possibility, it seems, is that it is in a superposition state like the atom in the decay/non-decay state, and the cat is stuck in a kind of dead/alive mixture.
A cat is dead and alive at the same time? Is it in a superposition of immortality and inactivity? This is too contrary to common sense, and at the same time biologically it is bizarre. If a living cat were to come out of the box, would it describe the strange feeling of dead/alive superposition if it could speak?
Yes! Of course it can't be, whether it's a cat or the world, it should exist objectively and not some probability wave!
How is quantum theory explained?
As a result, the child, saw something even more confusing:
Copenhagen, Multi-Universe, Hidden Variable, Ensemble, GRW, Decoherent History...... These schools of quantum physics have all come up with their own interpretations of "Schrödinger's cat", and each theory has spawned countless variants, and they are all going to great lengths to sell themselves to the world under their own banners, which has made people dizzy and overwhelmed......
Schrödinger originally wanted to prove the absurdity of the Copenhagen school and restore an objective and real world, but in the end, "Schrödinger's cat" made the world even more bizarre.
The only thing that is certain, however, is that none of these schools of thought can prove the others wrong. Because no matter what school of thought it is, if you deduce it from the formula, the results are all correct.
Among the many interpretations of "Schrödinger's cat" by the quantum physics school, the Copenhagen school believes that life and death cannot be decided until the box is opened and the cat is seen. It is only when the box is opened and observed, that the superposition state suddenly "collapses", and people know the definite state of the cat: dead or alive.
This theory can be roughly summarized as: "The nature of things depends on the consciousness of the observer." ”
In another world, this theory is just one of the schools of quantum theory, and other schools of quantum theory can also prove their correctness.
But in the forbidden world, the theory of the Copenhagen school seems to have become the only truth, and even "Schrödinger's cat" has become something that confirms its authenticity.
Even, it has become the theoretical basis for the development of superpowers.
"Quantum theory is 'the more you know, the more you don't know', and there is no 'right solution', and now there is a single 'right answer'...... It seems that Einstein's 'God' really exists in this world......"
Mirei Misaka held her chin, and although her eyes were looking at the computer monitor, her pupils were not focused, but they were scattered aimlessly.
"It's no wonder that treemap designers can forecast the weather with that kind of accuracy...... No, it's not a prophecy anymore, it's something like a prophecy, and if the nature of the world is understood, it is not surprising that human beings can do the same thing as God. ”
That world is so confused by quantum theory that it doesn't know whether it really exists, but this world really exists because of the 'supreme will'...... Is this the "objective world" that we dreamed of in the past, in which "human beings have gained insight into the truth"?
As long as there is enough detailed data, the weather for tomorrow can be calculated, and the shape of the universe 100 million years from now can also be calculated...... Is it even possible to distort "personal reality" to achieve various superpowers, is this what is called "real"?
Zhuang Zhou dreams of butterflies, is it a human or a butterfly? Wave-particle duality, wave or particle? True and false, true and false? Is it Schrödinger's wave function or Heisenberg's matrix? △ψ[8(π^2)m/h^2](E-V)ψ=0? ∣Pxz-Pzy∣≤1+Pxy?
Mirei Misaka let out a sneer from the corner of her mouth, she seemed to understand something.
Closing the computer, she picked up the teacup, drank the cold tea in one go, stood up and stretched, and then slowly closed her eyes and stood in place.
In the next instant, a girl in a black suit who looked exactly like her materialized out of thin air in the room.
It's just that Broly now looks like he's in a rage.
"What's going on! The seventh part of the core circuit can be distorted...... Kindness? How are you? ”
Seeing the white-robed girl in front of her, Broly frowned and looked up and down for a while.
"I don't know until now, is it used to play a prank?"
Meiling folded her hands in embarrassment towards Broly:
"I kind of understand a little bit, so I'll do a little bit of experimentation...... Don't be angry! ”
Broly sighed unbearably,
"Okay, okay, if I don't bother with you, it's stupid to be angry with myself...... But what are you going to do next? Give yourself a super-invincible ability? ”
"Misaka wants to do it......"
Meiling looked out of strength, and said dejectedly:
"It's one thing to know, it's another to do...... Do you know how difficult it is to know on the one hand, 'what nonsense this is,' and on the other hand, to believe that this nonsense is true...... I'm afraid it's easier to hypnotize Misaka......"
Looking at the white-robed girl who drooped her shoulders, Broly slowly shook her head:
"It seems that enlightenment is not enough...... Let me tell you. ”
"Huh?"
"If Schrödinger's cat is dead or alive has been determined by a certain will in this world, then, when we come here......"
The corners of Broly's mouth pulled out a wicked smile,
"That cat doesn't have to be a cat."
Faced with this specious statement, Mirei Misaka's two eyes shrunk into small dots:
"Uh, can you make that clearer?"
"The existing language simply can't express it in more detail."
"Not a cat? Can it still be an elephant? Elephant elephant? A lot of elephants? There are a lot of elephants."
“”