English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/12555
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Unitary evolution in Gowdy cosmology

AuthorsCorichi, Alejandro; Cortez, Jerónimo; Mena Marugán, Guillermo A.
KeywordsQuantum gravity
Unitary symmetry
Space-time configurations
Issue Date6-Feb-2006
PublisherAmerican Physical Society
CitationPhysical Review D 73(4): 041502 (2006)
AbstractRecent results on the nonunitary character of quantum time evolution in the family of Gowdy T³ spacetimes bring the question of whether one should abandon the most sacred principle of unitary evolution in cosmology. In this work we show that the answer is in the negative. We put forward a full nonperturbative canonical quantization of the polarized Gowdy T³ model that implements the dynamics while preserving unitarity. We discuss possible implications of this result.
Description5 pages, no figures.-- PACS nrs.: 04.60.Ds; 04.60.Kz; 04.62.+v; 98.80.Qc.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.73.041502
Appears in Collections:(CFMAC-IEM) Artículos
Files in This Item:
File Description SizeFormat 
Corichi.pdf92,85 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.