Absorption cross section in Lifshitz black hole

TL;DR

This paper calculates the absorption cross section of a scalar field in a Lifshitz black hole, demonstrating it aligns with the horizon area in certain limits, thus supporting universality in black hole physics.

Contribution

It derives the absorption cross section for a scalar in a Lifshitz black hole from new massive gravity, confirming universality in low energy limits.

Findings

Absorption cross section reduces to horizon area at low energy and massless limit.

Supports universality of low energy absorption cross section for Lifshitz black holes.

Validates theoretical predictions in Lifshitz black hole models.

Abstract

We derive the absorption cross section of a minimally coupled scalar in the Lifshitz black hole obtained from the new massive gravity. The absorption cross section reduces to the horizon area in the low energy and massless limit of s-wave mode propagation, indicating that the Lifshitz black hole also satisfies the universality of low energy absorption cross section for black holes.