Work

Exponentially long evaporation of noncommutative black hole

Year: 2026

Type: article

Abstract: A bstract We investigate Hawking radiation in noncommutative spacetime. For a dynamical black hole formed by the collapse of a matter shell, we demonstrate that spacetime noncommutativity modifies the interaction between the radiation field and the background geometry. In particular, the collapsing shell is effectively shifted by an amount proportional to the momentum of an outgoing Hawking mode. While the nonlocality inherent in noncommutative spacetime invalidates the conventional arguments for the robustness of Hawking radiation, the radiation decays substantially after the scrambling time, resulting in an exponentially long evaporation time.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep10(2026)154

Authors: Pei-Ming Ho, Wei-Hsiang Shao, Takuya Yoda

Institutions: National Taiwan University, National Center for Theoretical Sciences, RIKEN, Kyoto University

Language: English

Topic: Noncommutative and Quantum Gravity Theories

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W7151586092

FWCI: 1.697

Cites: 84

Cited by: 2

Related to: 10