Insensitivity of Hawking radiation to an invariant Planck-scale cutoff

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.047503· OSTI ID:21322534

Agullo, Ivan ^[1]; Navarro-Salas, Jose ^[2]; Olmo, Gonzalo J ^[3]; Parker, Leonard ^[1]

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1. Physics Department, University of Wisconsin-Milwaukee, P.O.Box 413, Milwaukee, Wisconsin 53201 (United States)
2. Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Facultad de Fisica, Universidad de Valencia, Burjassot-46100, Valencia (Spain)
3. Instituto de Estructura de la Materia, CSIC, Serrano 121, 28006 Madrid (Spain)

A disturbing aspect of Hawking's derivation of black hole radiance is the need to invoke extreme conditions for the quantum field that originates the emitted quanta. It is widely argued that the derivation requires the validity of the conventional relativistic field theory to arbitrarily high, trans-Planckian scales. We stress in this note that this is not necessarily the case if the question is presented in a covariant way. We point out that Hawking radiation is immediately robust against an invariant Planck-scale cutoff. This important feature of Hawking radiation is relevant for a quantum gravity theory that preserves, in some way, the Lorentz symmetry.

• OSTI ID: 21322534
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevD.80.047503; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BLACK HOLES
LORENTZ INVARIANCE
QUANTUM FIELD THEORY
QUANTUM GRAVITY
RELATIVISTIC RANGE
SYMMETRY