Entropy of a Rindler Observer

TL;DR

This paper calculates the entropy experienced by a Rindler observer due to the Unruh effect, revealing how acceleration induces a thermal state in the quantum field.

Contribution

It provides a detailed computation of the entropy associated with a Rindler particle-detector in the Minkowski vacuum, linking acceleration to thermal entropy.

Findings

Entropy is proportional to the observer's acceleration.

The Rindler observer perceives a thermal bath due to the Unruh effect.

The entropy quantifies the information loss related to acceleration-induced thermalization.

Abstract

We compute the entropy of a Rindler particle-detector (observer) in the presence of a quantum field in the Minkowski vacuum state; due to the Unruh effect, the observer is immersed in a thermal bath at a temperature proportional to its proper acceleration.