Spacetime Foam as a Quantum Thermal Bath

Luis J. Garay
Phys. Rev. Lett. 80, 2508 – Published 23 March 1998
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Abstract

An effective model for the spacetime foam is constructed in terms of nonlocal interactions in a classical background. In the weak-coupling approximation, the evolution of the low-energy density matrix is determined by a master equation that predicts loss of quantum coherence. Moreover, spacetime foam can be described by 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.

  • Received 12 January 1998

DOI:https://doi.org/10.1103/PhysRevLett.80.2508

©1998 American Physical Society

Authors & Affiliations

Luis J. Garay

  • Instituto de Matemáticas y Física Fundamental, CSIC, C/Serrano 121, 28006 Madrid, Spain

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Vol. 80, Iss. 12 — 23 March 1998

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