Effective Thermal Physics in Holography: A Brief Review

TL;DR

This paper reviews how holography models thermal physics experienced by Rindler observers, focusing on strongly coupled systems and the observable effects of effective thermal states in string and brane configurations.

Contribution

It provides a concise overview of the holographic approach to thermal physics, emphasizing the role of Rindler observers and the dynamics of fundamental matter in strongly coupled regimes.

Findings

Rindler observers perceive a thermal flux in Minkowski vacuum.

Holographic models capture the steady state thermal behavior of subset degrees of freedom.

Observable effects include signatures in string and brane configurations.

Abstract

It is well-known that a Rindler observer measures a non-trivial energy flux, resulting in a thermal description in an otherwise Minkowski vacuum. For systems consisting of large number of degrees of freedom, it is natural to isolate a small subset of them, and engineer a steady state configuration in which these degrees of freedom act as Rindler observers. In Holography, this idea has been explored in various contexts, specifically in exploring the strongly coupled dynamics of a fundamental matter sector, in the background of adjoint matters. In this article, we briefly review some features of this physics, ranging from the basic description of such configurations in terms of strings and branes, to observable effects of this effective thermal description.