What is the scientific basis for quantum mechanics to be close to metaphysics?

Because it is beyond or close to the limit of human observation! The experimental effect is greatly reduced, and the conjecture component is larger! The theory obtained is not perfect enough! This is as good as cosmology, and it is beyond the limits of observation, and it is not very perfect! However, with the development of science and technology, it will be slowly improved!

Quantum mechanics is the basic theoretical framework on which microphysics depends. Since its inception more than a hundred years ago, it has achieved one success after another in all aspects of physical foundation and application. It exhibits this discontinuous separation property, and other physical quantities such as angular momentum, spin, and charge also exhibit this discontinuous quantization phenomenon.

This is fundamentally different from classical physics, represented by Newtonian mechanics. The phenomenon of quantization is mainly manifested in the microscopic physical world. The physical theory that describes the microscopic physical world is quantum mechanics.

A physical quantity is quantized if it has the smallest indivisible basic unit, and the smallest unit is called quantum. The concept of quantum is often used in physics to refer to an indivisible fundamental entity. For example, the "quantum of light" (photon) is the unit of light.

Quantum mechanics and quantum optics have expanded into different specialized fields of study. Its basic concept is that all tangible property is "quantifiable". "Quantized" means that the value of its physical quantity is specific, not arbitrary.

For example, in an atom, the energy of an electron can be quantized. This determines the stability of the atom and the general problem. Many physicists use quantum mechanics as a fundamental theory for understanding and describing nature.

In general, a completely black substance absorbs all the light, but the process of light absorption by a black body is not continuous. People didn't know that light was made up of photons at first, so they thought that a black body should be constantly absorbing light. However, experimental data shows that blackbodies absorb light individually, rather than continuously.

This is the first time that humans have discovered the quantization properties of energy.

In simple terms, the photoelectric effect refers to the fact that when a photon irradiates a photosensitive substance, its energy can be completely absorbed by one of the electrons in the substance. After the electrons absorb the energy of the photon, the kinetic energy immediately increases. If the kinetic energy increases enough to overcome the attraction of atomic nuclei to it, they can fly off the surface of the metal and become photoelectrons, forming a photocurrent.

The larger the number of incident photons per unit time, the more photoelectrons fly out, and the stronger the photocurrent. This phenomenon of automatic discharge of light energy into electrical energy is called the photoelectric effect.

Quantum physics is a branch of physics that studies the motion laws of microscopic particles in the material world, mainly studying the basic theory of the structure and properties of atoms, molecules, condensed matter, atomic nuclei and elementary particles, which together with the theory of relativity constitute the theoretical basis of modern physics. The fundamental difference between quantum mechanics and classical mechanics is that the former holds that the probability of an event occurring cannot be described in terms of probability as a real number, but as a probability amplitude as a complex number.

From the composition of the microcosm to the macrocosm, quantum physics not only studies the tools of the microscopic world, but also studies the microstructure of macroscopic objects, as well as their special physical properties, which play a huge role. In physics books, we have learned about atoms, molecules, atomic nuclei and other substances studied by physical scientists, and we can observe some physical phenomena about the series of characteristics of the microscopic world, which are called quantum phenomena, and in general, quantum physics.

1. Wave-particle duality. The photoelectric effect refers to the fact that when light hits a metal plate, some electrons will be excited, and physicists have found that when doing experiments on the photoelectric effect, whether the electrons can be excited is not related to the intensity of the light, but to the frequency of the light.

2. The principle of uncertainty. The uncertainty principle states that the momentum and position of microscopic particles cannot be accurately measured at the same time. The more accurately the momentum of a particle is measured, the less accurate the position will be.

3. Quantum entanglement. Quantum entanglement refers to the fact that two particles prepared in a certain way, no matter how far apart, will be related to each other, with a kind of "transcendent effect".

Quantum mechanics (quantum mechanics), a theory of physics, is a branch of physics that studies the motion laws of microscopic particles in the material world, mainly studying the basic theory of atoms, molecules, condensed matter, as well as the structure and properties of atomic nuclei and elementary particles. Together with the theory of relativity, it forms the theoretical basis of modern physics. Quantum mechanics is not only one of the basic theories of modern physics, but also widely used in disciplines such as chemistry and many modern technologies.