期刊
REPORTS ON PROGRESS IN PHYSICS
卷 80, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6633/aa7e14
关键词
quantum gravity; loop quantum gravity; black holes; black hole thermodynamics; quantum gravity phenomenology
资金
- OCEVU Labex [ANR-11-LABX-0060]
- A*MIDEX - 'Investissements d'Avenir' French government [ANR-11-IDEX-0001-02]
This is a review of results on black hole physics in the context of loop quantum gravity. The key feature underlying these results is the discreteness of geometric quantities at the Planck scale predicted by this approach to quantum gravity. Quantum discreteness follows directly from the canonical quantization prescription when applied to the action of general relativity that is suitable for the coupling of gravity with gauge fields, and especially with fermions. Planckian discreteness and causal considerations provide the basic structure for the understanding of the thermal properties of black holes close to equilibrium. Discreteness also provides a fresh new look at more (at the moment) speculative issues, such as those concerning the fate of information in black hole evaporation. The hypothesis of discreteness leads, also, to interesting phenomenology with possible observational consequences. The theory of loop quantum gravity is a developing program; this review reports its achievements and open questions in a pedagogical manner, with an emphasis on quantum aspects of black hole physics.
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