Quantum evolution in space-time foam

In this work, I review some aspects concerning the evolution of quantum low-energy fields in a foamlike space-time, with involved topology at the Planck scale but with a smooth metric structure at large length scales, as follows. Quantum gravitational fluctuations may induce a minimum length thus in...

Descripción completa

Detalles Bibliográficos
Autor: Garay Elizondo, Luis Javier
Tipo de recurso: artículo
Fecha de publicación:1999
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/59529
Acceso en línea:https://hdl.handle.net/20.500.14352/59529
Access Level:acceso abierto
Palabra clave:51-73
Chronology protection conjecture
Action uncertainty principle
De-Sitter wormholes
Virtual black-holes
Cosmological constant
Baby universes
General-relativity
Particle creation
Giant wormholes
Topology change
Física-Modelos matemáticos
Física matemática
id ES_bb01bedbc9dcaed24da02010c030a8bd
oai_identifier_str oai:docta.ucm.es:20.500.14352/59529
network_acronym_str ES
network_name_str España
repository_id_str
spelling Quantum evolution in space-time foamGaray Elizondo, Luis Javier51-73Chronology protection conjectureAction uncertainty principleDe-Sitter wormholesVirtual black-holesCosmological constantBaby universesGeneral-relativityParticle creationGiant wormholesTopology changeFísica-Modelos matemáticosFísica matemáticaIn this work, I review some aspects concerning the evolution of quantum low-energy fields in a foamlike space-time, with involved topology at the Planck scale but with a smooth metric structure at large length scales, as follows. Quantum gravitational fluctuations may induce a minimum length thus introducing an additional source of uncertainty in physics. The existence of this resolution limit casts doubts on the metric structure of space-time at the Planck scale and opens a doorway to nontrivial topologies, which may dominate Planck scale physics. This foamlike structure of space-time may show up in low-energy physics through loss of quantum coherence and mode-dependent energy shifts, for instance, which might be observable. Space-time foam introduces nonlocal interactions that can be modeled by a quantum bath, and low-energy fields evolve according to a master equation that displays such effects. Similar laws are also obtained for quantum mechanical systems evolving according to good real clocks, although the underlying Hamiltonian structure in this case establishes serious differences among both scenarios.World Scientific Publ Co Pte LtdUniversidad Complutense de Madrid19991999-08-2019991999-08-20journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/59529reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/595292026-06-02T12:44:21Z
dc.title.none.fl_str_mv Quantum evolution in space-time foam
title Quantum evolution in space-time foam
spellingShingle Quantum evolution in space-time foam
Garay Elizondo, Luis Javier
51-73
Chronology protection conjecture
Action uncertainty principle
De-Sitter wormholes
Virtual black-holes
Cosmological constant
Baby universes
General-relativity
Particle creation
Giant wormholes
Topology change
Física-Modelos matemáticos
Física matemática
title_short Quantum evolution in space-time foam
title_full Quantum evolution in space-time foam
title_fullStr Quantum evolution in space-time foam
title_full_unstemmed Quantum evolution in space-time foam
title_sort Quantum evolution in space-time foam
dc.creator.none.fl_str_mv Garay Elizondo, Luis Javier
author Garay Elizondo, Luis Javier
author_facet Garay Elizondo, Luis Javier
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
Chronology protection conjecture
Action uncertainty principle
De-Sitter wormholes
Virtual black-holes
Cosmological constant
Baby universes
General-relativity
Particle creation
Giant wormholes
Topology change
Física-Modelos matemáticos
Física matemática
topic 51-73
Chronology protection conjecture
Action uncertainty principle
De-Sitter wormholes
Virtual black-holes
Cosmological constant
Baby universes
General-relativity
Particle creation
Giant wormholes
Topology change
Física-Modelos matemáticos
Física matemática
description In this work, I review some aspects concerning the evolution of quantum low-energy fields in a foamlike space-time, with involved topology at the Planck scale but with a smooth metric structure at large length scales, as follows. Quantum gravitational fluctuations may induce a minimum length thus introducing an additional source of uncertainty in physics. The existence of this resolution limit casts doubts on the metric structure of space-time at the Planck scale and opens a doorway to nontrivial topologies, which may dominate Planck scale physics. This foamlike structure of space-time may show up in low-energy physics through loss of quantum coherence and mode-dependent energy shifts, for instance, which might be observable. Space-time foam introduces nonlocal interactions that can be modeled by a quantum bath, and low-energy fields evolve according to a master equation that displays such effects. Similar laws are also obtained for quantum mechanical systems evolving according to good real clocks, although the underlying Hamiltonian structure in this case establishes serious differences among both scenarios.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-08-20
1999
1999-08-20
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/59529
url https://hdl.handle.net/20.500.14352/59529
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv World Scientific Publ Co Pte Ltd
publisher.none.fl_str_mv World Scientific Publ Co Pte Ltd
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417987651403776
score 15,301603

Similares en LA Referencia