In the quantum world, there is no need to follow the classical laws of physics, so people's exploration of the quantum world has never reached the expected state. We know that Einstein is an outstanding scientist. He has solved countless mysteries, but there is a strange phenomenon in the world.
Einstein was puzzled by this and called this phenomenon "strange behavior in the distance", which is also commonly called "quantum entanglement". Quantum entanglement is a strange phenomenon in quantum mechanics. Today we are going to learn about the terrible quantum world.
The truth of quantum mechanics. At first, people's understanding of the micro-world still depended on Newton's classical physics. Since Planck and Einstein laid the foundation of quantum mechanics, human beings began to study quantum mechanics and micro-world.
Quantum mechanics is a theory describing the micro-world, mainly describing the physical theory at atomic and subatomic scales. Together with the theory of relativity, it constitutes the theoretical basis of modern physics, and it is also one of the most basic theories of modern physics.
According to quantum theory, particles behave like waves, which is used to describe the behavior of particles? Wave function? It is possible to predict the possible characteristics of a particle, such as its position and velocity, rather than the definite characteristics. The advent of quantum mechanics has completely changed people's understanding of the composition of matter.
Nowadays, in modern society, quantum mechanics has been widely used in many fields such as quantum chemistry, quantum calculation, superconducting magnets, light-emitting diodes, transistors, microprocessors and other semiconductors.
A brief understanding of quantum mechanics is the theory used to study the micro-world. There are some strange concepts in quantum mechanics, such as entanglement and uncertainty principle.
Quantum entanglement. Einstein is also called quantum entanglement? Ghost remote operation? In a system composed of two or more particles, the interaction between particles is a strange phenomenon.
Among two particles that are far apart, the behavior of one particle will affect the state of the other particle. When the state of one particle changes, the state of another particle will change immediately, regardless of distance and speed, which far exceeds the speed of light.
Quantum entanglement is considered as one of the most difficult natural phenomena to understand, and the main meaning of quantum entanglement is that after several particles interact, their original characteristics will become the whole nature.
However, the properties of individual particles can not be better described, only the overall properties can be described. In the future, we scientists also hope to use this kind of particle entanglement to build a quantum computer for ultra-high-speed calculation.
Schrodinger's Cat This is a famous thought experiment in quantum mechanics, and it is also a brainstorming. It is roughly like this: suppose there is a closed box with a cat, microscopic radioactive atoms, a device that can detect atomic decay and a toxic gas release device. The half-life of this radioactive atom is one hour. A particle may or may not be produced within an hour.
In other words, if the atom decays, the kitten dies; Atoms do not decay, kittens live. Because the decay of atoms is uncertain, so is the life and death of kittens. Only by opening the box can we know whether the kitten is dead or alive. So before the box was opened, there was one inside. Dead or alive? That cat!
According to the theory of quantum mechanics, since radioactive atoms are in the superposition of decayed metamorphosis and undiluted state, cats should be in the superposition of dead cats and live cats. However, it is impossible to have dead cats and live cats in real life, and the result can only be known after opening the container.
This experiment ingeniously led the state of the micro-world directly to the macro-world that can be intuitively understood, while Bohr's previous statement was that before opening the box, the atom was in? Rot? With what? No decay? Superposition state, when the box is opened, the observed action, that is, superposition state, collapses and is in one of the states stably.
This thought experiment has become the most classic problem of quantum mechanics and a touchstone of quantum theory. With the development of quantum mechanics, Schrodinger's cat has also extended physical problems such as parallel universe and some philosophical disputes.
Conclusion. Among all physical science theories, quantum mechanics is considered to be the most accurate one, but in the eyes of many researchers, it is still very counterintuitive, mainly because no one can really understand quantum, and this includes the founder of quantum mechanics.
Physicists once said. Nobody can understand quantum mechanics? It can also be seen from this sentence that the objective world described by quantum mechanics is difficult to understand. The founders of quantum mechanics don't understand things thoroughly, so ordinary people who haven't touched them will naturally feel mysterious.