1905, Einstein put forward the concept of light quantum and explained the photoelectric effect.

19 10 year, alpha particle scattering experiment.

19 1 1 year, superconductivity was discovered.

19 13 years, Bohr proposed the atomic model.

19 15, sommerfeld modified Bohr model, introduced relativity, and explained Zeeman effect and Stark effect.

19 18 years, Bohr correspondence principle was formed.

1922, Stern-Gerlach experiment.

1923, Compton completed the X-ray scattering experiment, and the particle nature of light was confirmed.

1924, Einstein deduced Planck's formula in black body. In 200 1 year, three scientists from America and Germany won the Nobel Prize in physics for their experiments.

1924, de Broglie expounded the theory of matter wave.

1925 Heisenberg, the Nobel Prize winner, put forward the uncertainty principle of quantum theory. In the same year, Heisenberg put forward the theory of matrix mechanics.

From 65438 to 0926, the Austrian physicist Schrodinger published six papers in the Chronicle of Physics, announcing the birth of the second form of quantum mechanics-wave mechanics. This equation later became the basic equation of quantum mechanics.

1927, De Broglie and Gemma proved the fluctuation of electrons through experiments. In the same year, G.P. Thomson further proved the volatility of electrons through experiments in Cambridge. An electron is a wave. They won the Nobel Prize together.

Schrodinger found that Heisenberg's matrix mechanics and his wave mechanics are mathematically equivalent. At this time, Pauli also independently discovered this equivalence. Then Dirac further unified matrix mechanics and wave mechanics.

Bohr put forward the "complementary principle", which is to study the "wave-particle duality" of electrons. Together with Bonn's probabilistic interpretation and Heisenberg's uncertainty, it has become the core of the "Copenhagen interpretation" of quantum theory, which has influenced it to this day.

1928, Dirac, the Nobel Prize winner, solved the quantum theory of matter at high speed.

After 1930, quantum theory well explained the principle that semiconductor is between conductor and insulator, which laid the foundation for the emergence of transistor. Since then, quantum theory has been widely used in physics, chemistry, semiconductors, microelectronics, chip technology, biology, medicine and other fields.

1932, von Neumann, who later became the father of computers, proved the mathematical equivalence between matrix mechanics and wave mechanics by using mathematical tools such as Hilbert space.

1944, Schrodinger wrote what is life.

1948, American scientists john bardeen, William Shockley and walter brattain invented the transistor according to the quantum theory. From 65438 to 0956, he won the Nobel Prize in Physics. Quantum theory provides the ability to accurately and consistently solve problems in atoms, lasers, X-rays, superconductivity and countless other aspects. At the same time, it provides a theoretical basis for quantum medicine.

1980, application of nuclear magnetic resonance in clinical medicine. Life information detectors have also appeared.