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Título

Time uncertainty in quantum gravitational systems

AutorBarbero González, Jesús Fernando ; Mena Marugán, Guillermo A. ; Villaseñor, Eduardo J. S.
Palabras clave[PACS] Canonical quantization
[PACS] Foundations of quantum mechanics; measurement theory
[PACS] Quantum field theory in curved spacetime
[PACS] Time and frequency
Fecha de publicación23-feb-2004
EditorAmerican Physical Society
CitaciónPhysical Review D, 69 (4), id. 044017 (2004)
ResumenIt is generally argued that the combined effect of the Heisenberg principle and general relativity leads to a minimum time uncertainty. Most of the analyses supporting this conclusion are based on a perturbative approach to quantization. We consider a simple family of gravitational models, including the Einstein-Rosen waves, in which the ~nonlinearized! inclusion of gravity changes the normalization of time translations by a monotonic energy-dependent factor. In these circumstances, it is shown that a maximum time resolution emerges nonperturbatively only if the total energy is bounded. Perturbatively, however, there always exists a minimum uncertainty in the physical time.
Descripción4 pags.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.69.044017
URIhttp://hdl.handle.net/10261/12530
DOI10.1103/PhysRevD.69.044017
ISSN0556-2821
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