LQG predicts the Unruh Effect. Comment to the paper "Absence of Unruh effect in polymer quantization" by Hossain and Sardar

TL;DR

This paper refutes a recent claim that loop quantum gravity negates the Unruh effect, clarifying the theoretical predictions and implications of LQG regarding this phenomenon.

Contribution

It demonstrates that loop quantum gravity does not predict the absence of the Unruh effect, correcting misconceptions from prior claims.

Findings

LQG is consistent with the existence of the Unruh effect

Clarifies misconceptions about LQG's predictions on acceleration-related phenomena

Provides insights into the theoretical implications of LQG for quantum field effects

Abstract

A recent paper claims that loop quantum gravity predicts the absence of the Unruh effect. I show that this is not the case, and take advantage of this opportunity to shed some light on some related issues.