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Title: | Time uncertainty in quantum gravitational systems |
Authors: | Barbero González, Jesús Fernando CSIC ORCID CVN; Mena Marugán, Guillermo A. CSIC ORCID; Villaseñor, Eduardo J. S. CSIC ORCID | Keywords: | [PACS] Canonical quantization [PACS] Foundations of quantum mechanics; measurement theory [PACS] Quantum field theory in curved spacetime [PACS] Time and frequency |
Issue Date: | 23-Feb-2004 | Publisher: | American Physical Society | Citation: | Physical Review D, 69 (4), id. 044017 (2004) | Abstract: | It 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. | Description: | 4 pags. | Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevD.69.044017 | URI: | http://hdl.handle.net/10261/12530 | DOI: | 10.1103/PhysRevD.69.044017 | ISSN: | 0556-2821 |
Appears in Collections: | (CFMAC-IEM) Artículos |
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