Thermodynamics of Reduced State of the Field

Abstract

Recent years have seen the flourishing of research devoted to quantum effects on mesoscopic and macroscopic scales. In this context, in Entropy 2019, 21, 705, a formalism aiming at describing macroscopic quantum fields, dubbed Reduced State of the Field (RSF), was envisaged. While, in the original work, a proper notion of entropy for macroscopic fields, together with their dynamical equations, was derived, here, we expand thermodynamic analysis of the RSF, discussing the notion of heat, solving dynamical equations in various regimes of interest, and showing the thermodynamic implications of these solutions.

Classicality of the Bogoliubov Transformations and the Dynamical Casimir Effect Through the Reduced State of the Field

“…Since the framework itself is not the main focus of our study, here we provide only basic information about it. For more details, see the introduction of the formalism by Robert Alicki in [20], its semi-classical interpretation in [21], and its application to thermodynamics in [26].…”