Thermodynamic bounds on the asymmetry of cross-correlations with dynamical activity and entropy production

Phys Rev E. 2024 Apr;109(4):L042101. doi: 10.1103/PhysRevE.109.L042101.

Abstract

Entropy production and dynamical activity are two complementary aspects in nonequilibrium physics. The asymmetry of cross-correlation, serving as a distinctive feature of nonequilibrium, also finds widespread utility. In this Letter, we establish two thermodynamic bounds on the normalized asymmetry of cross-correlation in terms of dynamical activity and entropy production rate. These bounds demonstrate broad applicability and offer experimental testability.