Black holes with a generalized gravitational action

1993/01/31 by Ming Lu, Mark B. Wise · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.47.r3095

published as Phys.Rev.D47:3095-3098,1993 · plain tex(uses phyzzx.tex), 8 pages, CALT-68-1850

arxiv created 1993/02/15 · openalex publication_date 1993/04/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Microscopic black holes are sensitive to higher-dimension operators in the gravitational action. We compute the influence of these operators on the Schwarzschild solution using perturbation theory. All (time-reversal-invariant) operators of dimension six are included (dimension-four operators do not alter the Schwarzschild solution). Corrections to the relation between the Hawking temperature and the black hole mass are found. The entropy is calculated using the Gibbons-Hawking prescription for the Euclidean path integral and using naive thermodynamic reasoning. These two methods agree; however, the entropy is not equal to \textonequarter the area of the horizon.

Citations

• Particle creation by black holes
• Black Holes and Entropy

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