We derive a classical Schrodinger type equation from the classical Liouville equation in phase space. The derivation is based on a Wigner type Fourier transform of the classical phase space probability distribution, which depends on an arbitrary constant $α$ with dimension of action. In order to achieve this goal two requirements are necessary: 1) It is assumed that the classical probability amplitude $Ψ(x,t)$ can be expanded in a complete set of functions $Φ_n(x)$ defined in the configuration space; 2) the classical phase space distribution $W(x,p,t)$ obeys the Liouville equation and is a real function of the position, the momentum and the time. We show that the constant $α$ appearing in the Fourier transform of the classical phase space distribution, and also in the classical Schrodinger type equation, has its origin in the spectral distribution of the vacuum zero-point radiation, and is identified with the Planck's constant $\hbar$.
Quantum simulation of Liouville equation in geometrical optics with partial transmission and reflection via Schrödingerization
School of Mathematical Sciences, Shanghai Jiao Tong University(上海交通大学数学科学学院);Institute of Natural Sciences, Shanghai Jiao Tong University(上海交通大学自然科学研究院);Ministry of Education Key Laboratory in Scientific and Engineering Computing, Shanghai Jiao Tong University(上海交通大学教育部科学和工程计算重点实验室)