UV Effects and Short-Lived Hawking Radiation: Alternative Resolution of Information Paradox

TL;DR

This paper proposes that Hawking radiation stops early due to string theory effects, potentially resolving the black-hole information paradox by preventing complete evaporation.

Contribution

It introduces two toy models incorporating stringy effects that suggest Hawking radiation ceases near the scrambling time, offering an alternative resolution to the paradox.

Findings

Hawking radiation terminates around the scrambling time in both models

Early termination leads to negligible black hole evaporation

Black holes remain largely classical after radiation stops

Abstract

This chapter suggests an alternative solution to the black-hole information paradox by proposing that Hawking radiation ceases around the scrambling time due to trans-Planckian effects inherent in string theory. We consider two toy models in the literature that incorporate stringy effects. The first model utilizes the generalized uncertainty principle, which introduces a minimal length. The second model is inspired by string field theory, where interactions are exponentially suppressed in the UV limit. Both models indicate an early termination of Hawking radiation around the scrambling time, resulting in negligible evaporated energy and a predominantly classical black hole.