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quant-ph2023
Phase space geometry of general quantum energy transitions
Alfredo M. Ozorio de Almeida
The mixed density operator for coarsegrained eigenlevels of a static Hamiltonian is represented in phase space by the spectral Wigner function, which has its peak on the correspond…
quant-ph2023
Semiclassical approximation of the Wigner function for the canonical ensemble
Marcos Gil de Oliveira, Alfredo Miguel Ozorio de Almeida
The Weyl-Wigner representation of quantum mechanics allows one to map the density operator in a function in phase space - the Wigner function - which acts like a probability distri…