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dc.contributor.author | Cortez, Jerónimo | - |
dc.contributor.author | Mena Marugán, Guillermo A. | - |
dc.contributor.author | Olmedo, Javier | - |
dc.contributor.author | Velhinho, José M. | - |
dc.date.accessioned | 2012-12-05T09:32:14Z | - |
dc.date.available | 2012-12-05T09:32:14Z | - |
dc.date.issued | 2011 | - |
dc.identifier | doi: 10.1088/0264-9381/28/17/172001 | - |
dc.identifier | issn: 0264-9381 | - |
dc.identifier.citation | Classical and Quantum Gravity 28: 172001 (2011) | - |
dc.identifier.uri | http://hdl.handle.net/10261/61980 | - |
dc.description.abstract | A major problem in the quantization of fields in curved spacetimes is the ambiguity in the choice of a Fock representation for the canonical commutation relations. There exists infinite number of choices leading to different physical predictions. In stationary scenarios, a common strategy is to select a vacuum (or a family of unitarily equivalent vacua) by requiring invariance under the spacetime symmetries. When stationarity is lost, a natural generalization consists in replacing time invariance by unitarity in the evolution. We prove that when the spatial sections are compact, the criterion of a unitary dynamics, together with the invariance under the spatial isometries, suffices to select a unique family of Fock quantizations for a scalar field with time-dependent mass. © 2011 IOP Publishing Ltd. | - |
dc.description.sponsorship | This work was supported by the research grants MICINN FIS2008-06078-C03-03 and CPAN CSD2007-00042 from Spain, DGAPA-UNAM IN108309-3 from Mexico, and ` CERN/FP/116373/2010 and PTDC/CTE-ATM/73607/2006 from Portugal. JO acknowledges CSIC by financial support under the grant JAE-Pre_08_00791. | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics Publishing | - |
dc.relation.isversionof | Preprint | - |
dc.rights | closedAccess | - |
dc.title | A uniqueness criterion for the Fock quantization of scalar fields with time-dependent mass | - |
dc.type | preprint | - |
dc.identifier.doi | 10.1088/0264-9381/28/17/172001 | - |
dc.date.updated | 2012-12-05T09:32:14Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_816b | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_816b | - |
item.fulltext | No Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | preprint | - |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
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