Black Hole Thermodynamics and Lorentz Symmetry

TL;DR

This paper explores how violations of Lorentz symmetry could lead to violations of black hole thermodynamics, suggesting Lorentz symmetry might be emergent from deeper thermodynamic principles.

Contribution

It extends previous arguments showing that Lorentz symmetry violation can break the generalized second law of thermodynamics in black hole physics.

Findings

Violations of the second law possible with Lorentz symmetry breaking

Constructs a theoretical perpetual motion machine using black holes

Proposes Lorentz symmetry as an emergent property from thermodynamics

Abstract

Recent developments point to a breakdown in the generalized second law of thermodynamics for theories with Lorentz symmetry violation. It appears possible to construct a perpetual motion machine of the second kind in such theories, using a black hole to catalyze the conversion of heat to work. Here we describe and extend the arguments leading to that conclusion. We suggest the inference that local Lorentz symmetry may be an emergent property of the macroscopic world with origins in a microscopic second law of causal horizon thermodynamics.