Holographic heat engine with momentum relaxation

TL;DR

This paper explores a black hole-based holographic heat engine with momentum relaxation, analyzing how this relaxation influences efficiency across different parameters and dimensions in high-temperature regimes.

Contribution

It introduces a novel holographic heat engine model incorporating momentum relaxation via axion fields and examines its efficiency behavior in various dimensions.

Findings

Momentum relaxation affects heat engine efficiency in a non-trivial way.

Efficiency behaviors depend on the parameter schemes and spacetime dimensions.

Qualitative effects vary with the dimension of the gravity theory.

Abstract

We investigate the heat engine defined via black hole with momentum relaxation, which is introduced by massless axion fields. We first study the extended thermodynamical properties of the black hole and then apply it to define a heat engine. Then, we analyze how the momentum relaxation affects the efficiency of the heat engine in the limit of high temperature. We find that depending on the schemes of specified parameters in the engine circle, the influence of momentum relaxation on the efficiency of the heat engine behaves novelly, and the qualitative behaviors do depend on the dimension of the gravity theory.