De Broglie hypothesis is the prelude of quantum mechanics, and Louis Broglie's theory of matter wave is of special importance. It shows that wavelength is inversely proportional to momentum; The direct ratio between frequency and total energy was put forward by Louis de Broglie in his doctoral thesis 1923.

Pay attention to two points

De Broglie

There are two points to explain here: first, De Broglie did not explicitly put forward the concept of material wave, but only used the concept of phase wave or phase wave, which is considered to be an imaginary immaterial wave. But what kind of waves are they? At the end of his doctoral thesis, he specifically stated: "I deliberately blurred the phase wave and periodic phenomena, just like the definition of light quantum, which can be said to be just an explanation.

Therefore, it is best to regard this theory as an expression with unclear physical content, rather than a final theory. "Matter wave was put forward by Schrodinger when he interpreted the physical meaning of wave function after the establishment of Schrodinger equation. Secondly, De Broglie did not explicitly put forward the relationship between wavelength λ and momentum P: λ=h/p(h is Planck constant), but later people found that this relationship was implicit in his paper, so it was called De Broglie formula.