Classical thermodynamics from quasi-probabilities

M. ROCCA; A. PLASTINO; F. PENNINI

MODERN PHYSICS LETTERS B

WORLD SCIENTIFIC PUBL CO PTE LTD

Lugar: London, UK; Año: 2016 vol. 30 p. 1650005 - 1650013

0217-9849

The basic idea of a microscopic understanding of thermodynamics is to derive its mainfeatures from a microscopic probability distribution. In such a vein, we investigate thethermal statistics of quasi-probabilities?s semiclassical analogs in phase space for theimportant case of quadratic Hamiltonians, focusing attention in the three more importantinstances, i.e. those of Wigner, P- and Husimi distributions. Introduction of aneffective temperature permits one to obtain a unified thermodynamic description thatencompasses and unifies the three different quasi-probability distributions. This unifieddescription turns out to be classical.