Chapter 498

Augustine's question made Lena dumbfounded.

It's not that he wants to ridicule each other, but that Lena has some feelings that the same problem will appear no matter in which world.

Seeing Lena's strange expression, Augustine was a little gloomy. He continued to ask.

"Planets like the moon are made up of rocks, and rocks are made up of elemental compounds. These elements are microscopic particles in essence. If the quantum effect really exists, then these microscopic particles should also be in the state of probability distribution. In other words, if there is a certain situation, when everyone does not observe the moon, they are microscopic particles of the moon The sun will change back into a probability cloud. The next time I look at it, the moon may fall apart. Can I understand that? "

Augustine's theory has made several mages in the audience ponder. Although Lena said that since some theories only hold in the case of macro low speed, it is natural that some theories only hold in the case of micro high speed, while quantum theory can be observed only in the micro field.

But Augustine's view has drawn people's attention to one thing, that is, macro objects are composed of micro particles, so why does the micro effect not affect the macro world? If there is such a boundary between micro and macro, what is it?

In fact, many people also find that the dividing line between macro and micro is not clear after thinking. People can't distinguish whether something belongs to macro or micro. Therefore, it's difficult to distinguish the criteria mentioned by Reiner.

"For a system composed of a single micro particle, the quantum effect exists, but for a macro system such as the moon, the quantum effect does not exist, at least in our current observations."

Lennard paused, and continued.

"I believe you have noticed that my description of probability cloud is a wave function. It is precisely because the particles show considerable volatility that all kinds of strange phenomena appear. Therefore, if we really want to find a simple way to distinguish, I think it should be the problem we are studying and the size of the corresponding object's Ian gray wave. In short, it is the object Whether it shows obvious volatility. "

Seeing that some of the mages haven't responded, Lena explains.

"For example, if we want to study the operation process of a planet, the size of the corresponding iangre wave of the planet is very small, so it will not show fluctuation. But if we study an electron crossing a double slit, the size of the corresponding iangre wave of the electron is close to that of the double slit, and the electron shows fluctuation, we need to consider the quantum effect."

He stood up and sketched out some formulas in midair.

"To explain Augustine's question mathematically, let's assume that the probability of a particle appearing here is x, which follows the probability distribution of its wave function. Then, for a macroscopic object, it contains nearly infinite particles, and the probability of the macroscopic object appearing here is the product of positive infinity and X. of course, this is not an actual quantum process What I want to show is that the probability of the moon existing in the sky is infinitely close to 1 even if quantum theory is applied. Therefore, the quantum effect of macro objects can be regarded as non-existent. "

Hearing Lena's explanation, Augustine reluctantly accepted it. He closed his eyes and motioned Lena to continue.

"Just a moment, Lena, please."

At this time, Lord Bragg said suddenly, which made people's nerves tense again.

"I also have a question. If we design a matrix containing a quantum system, such as an atom that may decay, this system presents two possibilities: one is that the atom decays and releases a particle, the other is that it does not decay and does not release a particle."

As he spoke, his finger moved, and a box of light appeared on the table in front of him.

"If the quantum system releases a particle, then the particle will trigger a poison gas device, making the box full of poison gas. In the box, there is a kitten. If the poison gas spreads, it will die."

In the box composed of light, a mimetic kitten appeared, licking its paws smartly, innocent.

"The problem is that the quantum system may release a particle to kill the kitten, or it may not. The kitten is safe. If we observe, the wave function of the quantum system composed of decaying atoms will collapse because of the observation behavior, and the kitten will either die or live. But the problem is, what if we don't observe?"

Mr. Bloggs's words had not caused any disturbance at first, but soon Mr. Alberton was startled, and his face became dignified, and then said.

"If the observation is not carried out, whether the atom decays or not is only a probability expression, and the cat's life and death is also a probability. According to the hypothesis of quantum theory, the cat should be in the superposition state of life and death at the moment. Once the observation is carried out, the wave function of the quantum system will collapse immediately, and the cat's life and death will be determined at the moment when the box is opened!"

"How is that possible!"

Reagans immediately stood up, because it was completely contrary to logical thinking. It was like tossing a coin. Although it was also a probability event, people knew that a coin that landed could only be one of the positive or negative sides, which had been decided at the time of landing.But at the moment, Lord Bragg's cat shows us such a scene. As long as the box is closed, the cat will be in a state of quantum superposition, in a state of life and death superposition. But once the box is opened, the cat's life and death will be instantly determined with the collapse of the wave function!

Mr. Braggs' hypothesis is extremely cunning, because according to Leiner, the quantum effect only exists in the micro scope, and the cat's life and death is obviously a macro event. Mr. Braggs' cat combines the micro quantum system with the macro cat's life and death, which can be said to be the advanced version of whether the moon exists due to observation just mentioned by Augustine.

In this hypothesis, Mr. Braggs transferred the quantum effect of the micro system to the macro system by ingenious means, making the macro system appear quantum effect.

If we accept the quantum theory, we must accept the half life cat. If we do not accept the superposition of the cat's life and death, we will not accept the quantum theory.

At the same time, the macroscopic quantum effect of this cat is also a great doubt to many of Lena's explanations.

After understanding the thought experiment of Lord Braggs, everyone subconsciously looked at Lena.

They're looking for an explanation.

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