Quantum-thermal fluctuations of effective macroparameters and their correlations

TL;DR

This paper develops a quantum-thermal fluctuation theory for macroparameters, extending thermodynamics to include quantum effects and environmental stochasticity, with explicit calculations of macroparameter correlations.

Contribution

It formulates a new theory of quantum-thermal macroparameter fluctuations that incorporates environmental stochastic action and satisfies thermodynamic applicability.

Findings

Correlator of entropy and temperature is proportional to environmental action.

Pair correlators depend linearly on effective action, with minima set by Planck's constant.

The theory extends classical fluctuation concepts to quantum-thermal regimes.

Abstract

The application of the conventional theory of macroparameter fluctuations has been shown to go beyond the framework of the thermodynamic description in a number of cases. The principles of the theory of quantum-thermal fluctuations of effective macroparameters and their correlations have been formulated. The theory satisfies the applicability conditions of equilibrium thermodynamics and is based on effective macroparameters, which take the integral stochastic action of the environment into account at any temperatures. The correlator of conjugate macroparameters, namely, the effective entropy and the effective temperature, has been calculated. The correlator was found to be proportional to the effective action which characterizes the stochastic environment. The pair correlators for the conjugate effective parameters entropy-temperature and coordinate-momentum have been demonstrated to depend linearly on the effective action, with their minimum values being determined by Planck's constant.