Black Body Radiation in Moving Frames

TL;DR

This paper reviews the evolution of relativistic thermodynamics, focusing on black body radiation in moving frames, and explores implications for quantum field theory phenomena like Hawking radiation and the Unruh effect.

Contribution

It provides a concise review of the development of relativistic thermodynamics related to black body radiation in moving frames and discusses its applications to quantum field theory in curved space.

Findings

Black body radiation depends on the observer's frame and thermodynamical definitions.

Relativistic thermodynamics remains an open, non-mature field with ongoing debates.

Applications to Hawking radiation and Unruh effect highlight the theory's relevance.

Abstract

The problem of black body radiation, when measured by a moving observer, has a pivotal role in relativistic thermodynamics. Mutually, it depends on the thermodynamical definition of the thermal equilibrium and temperature of moving bodies, i.e. under a Lorentz transformation, and also in a gravitational field. Surprisingly, even after more than a century, relativistic thermodynamics is not a mature theory and is still an open problem without a consensus. This article is a brief review of the evolution of this theory with a special focus on the black body radiation in moving frames. As an application, we use the results in the most interesting topics of the quantum field theory in curved space: Hawking radiation, and Unruh effect.