University of Sussex
Browse
QHandBHI.pdf (206.9 kB)

Quantum hair and black hole information

Download (206.9 kB)
journal contribution
posted on 2023-06-10, 02:43 authored by Xavier CalmetXavier Calmet, Stephen D H Hsu
It has been shown that the quantum state of the graviton field outside a black hole horizon carries information about the internal state of the hole. We explain how this allows unitary evaporation: the final radiation state is a complex superposition which depends linearly on the initial black hole state. Under time reversal, the radiation state evolves back to the original black hole quantum state. Formulations of the information paradox on a fixed semiclassical geometry describe only a small subset of the evaporation Hilbert space, and do not exclude overall unitarity.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Physics Letters B

ISSN

0370-2693

Publisher

Elsevier

Article number

a136995

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Theoretical Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2022-02-24

First Open Access (FOA) Date

2022-03-01

First Compliant Deposit (FCD) Date

2022-02-23

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC