Gravity-induced transparency

TL;DR

This paper explores how gravity can induce transparency effects in quantum detectors near black holes, revealing parallels with acceleration-induced transparency in electromagnetic fields, confirmed through calculations in different quantum states.

Contribution

It demonstrates gravity-induced transparency phenomena in Schwarzschild spacetime, extending understanding of quantum effects in curved spacetime environments.

Findings

Gravity induces transparency in Unruh-DeWitt detectors near black holes

Similarities between free-falling and accelerated detectors are established

Transparency phenomena are confirmed in Hartle-Hawking and Unruh states

Abstract

We investigate the transition amplitudes of the Unruh-DeWitt detector within the Schwarzschild spacetime background and discover gravity-induced transparency phenomena akin to the earlier acceleration-induced transparency. This is confirmed through calculations performed in both the Hartle-Hawking and Unruh states. The similarity between free-falling detectors in these states and accelerated detectors in electromagnetic fields is noteworthy, as it parallels the scenario in which acceleration-induced transparency phenomena occur.