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Título

Thermal properties of spacetime foam

Autor Garay, Luis Javier
Palabras clave [PACS] Foundations, theory of measurement, miscellaneous theories
[PACS] Spacetime topology, causal structure, spinor structure
[PACS] Quantum aspects of black holes, evaporation, thermodynamics
[PACS] Quantum gravity
Fecha de publicación 1998
EditorAmerican Physical Society
Citación Physical Review D - Particles, Fields, Gravitation and Cosmology 58: 1240151+12401511 (1998)
ResumenSpacetime foam can be modeled in terms of nonlocal effective interactions in a classical nonfluctuating background. Then, the density matrix for the low-energy fields evolves, in the weak-coupling approximation, according to a master equation that contains a diffusion term. Furthermore, it is argued that spacetime foam behaves as a quantum thermal field that, apart from inducing loss of coherence, gives rise to effects such as gravitational Lamb and Stark shifts as well as quantum damping in the evolution of the low-energy observables. These effects can be, at least in principle, experimentally tested. ©1998 The American Physical Society
URI http://hdl.handle.net/10261/100756
DOI10.1103/PhysRevD.58.124015
Identificadoresdoi: 10.1103/PhysRevD.58.124015
issn: 0556-2821
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