Non-minimal couplings, quantum geometry and black-hole entropy

Abhay Ashtekar, Alejandro Corichi

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The black-hole entropy calculation for type I isolated horizons, based on loop quantum gravity, is extended to include non-minimally coupled scalar fields. Although the non-minimal coupling significantly modifies quantum geometry, the highly non-trivial consistency checks for the emergence of a coherent description of the quantum horizon continue to be met. The resulting expression of black-hole entropy now depends also on the scalar field precisely in the fashion predicted by the first law in the classical theory (with the same value of the Barbero-Immirzi parameter as in the case of minimal coupling).

Original languageEnglish (US)
Pages (from-to)4473-4484
Number of pages12
JournalClassical and Quantum Gravity
Volume20
Issue number20
DOIs
StatePublished - Nov 21 2003

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horizon
entropy
scalars
geometry
gravitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ashtekar, Abhay ; Corichi, Alejandro. / Non-minimal couplings, quantum geometry and black-hole entropy. In: Classical and Quantum Gravity. 2003 ; Vol. 20, No. 20. pp. 4473-4484.
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Non-minimal couplings, quantum geometry and black-hole entropy. / Ashtekar, Abhay; Corichi, Alejandro.

In: Classical and Quantum Gravity, Vol. 20, No. 20, 21.11.2003, p. 4473-4484.

Research output: Contribution to journalArticle

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