Published May 15, 2009 | Version v1
Journal article

Black hole evaporation within a momentum-dependent metric

  • 1. Universita Statale di Bergamo, Facolta di Ingegneria, viale Marconi 5, I-24044 Dalmine (Italy) and Istituto Nazionale di Fisica Nucleare, Sezione di Milano, via Celoria 16, I-20133 Milan (Italy)

Description

We investigate the black hole thermodynamics in a 'deformed' relativity framework where the energy-momentum dispersion law is Lorentz-violating and the Schwarzchild-like metric is momentum-dependent with a Planckian cutoff. We obtain net deviations of the basic thermodynamical quantities from the Hawking-Bekenstein predictions: actually, the black hole evaporation is expected to quit at a nonzero critical mass value (of the order of the Planck mass), leaving a zero temperature remnant, and avoiding a spacetime singularity. Quite surprisingly, the present semiclassical corrections to black hole temperature, entropy, and heat capacity turn out to be identical to the ones obtained within some quantum approaches.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
79
Journal Issue
10
Journal Page Range
p. 104009-104009.6
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41042652
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BLACK HOLES; CORRECTIONS; CRITICAL MASS; DISPERSIONS; ENTROPY; EVAPORATION; FORECASTING; METRICS; SEMICLASSICAL APPROXIMATION; SINGULARITY; SPACE-TIME; SPECIFIC HEAT; THERMODYNAMICS
Descriptors DEC
APPROXIMATIONS; CALCULATION METHODS; MASS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES

Optional Information

Notes
(c) 2009 The American Physical Society