What is a Schorting Cat ? What does Sherdink s cat refer to

Erwin Schrödinger, one of the founders of quantum mechanics, published a peculiar ideal experiment in 1935 to describe his thinking about quantum superposition, because this is an experiment in the quantum world, in fact, it can neither be operated (because it is too microscopic, no instrument can do it) and cannot be displayed (human sensory organs can only accept the macroscopic landscape, and it is impossible to see the quantum world), so Schrödinger had to use something that ordinary people can grasp - a cat to do this experiment, And this experiment can't really be done, so it can only be described in words.

Schrödinger's experiment was as follows: a cat was kept in a sealed steel box with the following cruel device (this device had to be kept free from direct interference by the cat): in the Geiger counter there was a small piece of radioactive substance, which was so small that perhaps only one atom decayed in one hour, and if it decayed, the counter tube discharged and a hammer was released through a relay to shatter a small bottle of hydrocyanate.

Radioactive decay itself is a quantum process, this device in 1 hour, if there is no atomic decay, the cat is alive, and if the first decay occurs, the cat will inevitably be killed.

The question of this experiment is: What would you find if you opened the box? Of course, people know that the cat is either dead or alive, but, according to the view of quantum mechanics, the cat is both dead and alive, and it has two states at the same time in this closed steel box, and although we cannot see both states of it at the same time, just as we cannot see both states of the quantum at the same time.

Schrödinger's experiment suggests that the system in the box is in a superposition of two states, one with a live cat and the other with a dead cat. This encompasses a combination of these two possible, but mutually exclusive, observations. So the cat is both alive and dead at the same time.

If we don't open the lid of the box to look at the cat, his famous Schrödinger equation says that the cat's temporal evolution can be mathematically described by a combination of these two states, the wave function of the system, which makes no physical (and physiological) sense. Just as the photon was neither a wave nor a particle before the measurement was made, the cat was neither alive nor dead until the professor finally decided to peep at it. It doesn't change until a person opens the box to take a look at it that it becomes a state:

Dead or alive.

Seen in the world of science fiction.

Schrjink's cat refers to the certainty and uncertainty of things, which exist only in the microcosm.

Schrädink's cat is a concept in quantum mechanics, in the microscopic and macroscopic, a cat is placed inside a small, fragile vial with poison gas and placed in a box with a lid. So before the lid was opened, there were two possibilities for each of the two cats. One is dead and the other is alive.

Using the concept of quantum mechanics, this cat is half dead and half alive. Of course, everyone knows that this state does not exist in reality, but it exists in the microcosm.

The concept of "Schrödinger's Cat" is that, according to the quantum principle, there should also be a superposition of states in the macrocosm. Schrödinger pretended to be a subordinate and kept a cat in a closed iron cage with a sealed poison gas bottle, a radioactive atom, a detector that could detect the radiated Arfa particles, and a hammer connected to the detector. This set of equipment is very complex, one link after another, and many of the whole sets of equipment with this chain reaction can be seen in the amusement hall.

Where did the mystical mechanism of this equipment begin? It's the radioactive atom that may or may decay to emit an Arfa particle, or it may not decay. If there's a decay and it's caught by a detector, the hammer falls down and smashes the bottle, and the gas is released, and the cat is poisoned.

If decay does not occur, the bottle will be in good condition, and the cat will live happily ever after. Just lock up the kitten for an hour, and in the end, is the kitten dead, alive, not dead or alive, or dead and alive? Xue Man said that he didn't know if he didn't open the box.

Because according to quantum mechanics, the atom should be in a state of decay and non-decay. 50% of the time it's decaying, 50% of the time it's non-decaying. Therefore, the kitten will also be in a state of superposition of dead and alive.

It is an ideal experiment on quantum theory, and the concept of Schrödinger's cat was proposed to solve the grandmother's paradox brought about by Einstein's theory of relativity, that is, the theory of parallel universes.

A cat is placed in a closed box, which is then connected to an experimental setup containing a radioactive nucleus and a container containing toxic gases. Imagine that this radioactive nucleus has a 50% chance of decaying within an hour. If decay occurs, it will emit a particle, which will trigger the experimental device to open the container containing the poisonous gas, killing the cat.

According to quantum mechanics, when not observed, the nucleus is in a superposition of decayed and undecayed, but if the box is opened after an hour, the experimenter can only see "decayed nuclei and dead cats" or "undecayed nuclei and living cats". Schrödinger published an article in 1935 entitled The Present State of Quantum Mechanics, in Section 5, in which Schrödinger described the cat experiment, which is often seen as a nightmare: the Copenhagen school says that before measurement, the state of a particle is ambiguous, in a mixture of possibilities.

For example, when a radioactive atom decays is completely probabilistic. As long as it is not observed, it is in a superposition of decay and non-decay, and only when it is measured accurately will it randomly choose a state and appear. So let's 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, resulting 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. The ingenuity of the great ideal experiment in this hall lies in the causal chain of "detector hammer poison acting as vertical bottle", which seems to link the "decay and non-decay superposition state" of uranium atoms with the "dead and alive superposition state" of cats, so that the microscopic uncertainty of quantum mechanics becomes macroscopic uncertainty; The microscopic chaos becomes the macrocosmic absurdity - the cat is either dead or alive, and the two must be one or the other, and it is impossible to be both dead and alive at the same time! No wonder the famous British scientist Stephen Hawking said when he heard Schrödinger's cat paradox

I'm going to get a gun and beat the cat to death. ”

Reference: Encyclopedia.

Specifically, please "Schrödinger's cat".