Symmetries and the cosmological constant puzzle

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dc.creatorAndrianov, A. A.
dc.creatorCannata, F.
dc.creatorGiacconi, P.
dc.creatorKamenshchik, A. Yu.
dc.creatorSoldati, R.
dc.date2007-04-11
dc.date2007-06-15
dc.date.accessioned2026-07-07T11:20:14Z
dc.date.available2026-07-07T11:20:14Z
dc.descriptionWe outline the evaluation of the cosmological constant in the framework of the standard field-theoretical treatment of vacuum energy and discuss the relation between the vacuum energy problem and the gauge-group spontaneous symmetry breaking. We suggest possible extensions of the 't Hooft-Nobbenhuis symmetry, in particular, its complexification till duality symmetry and discuss the compatible implementation on gravity. We propose to use the discrete time-reflection transform to formulate a framework in which one can eliminate the huge contributions of vacuum energy into the effective cosmological constant and suggest that the breaking of time--reflection symmetry could be responsible for a small observable value of this constant.
dc.description11 pages, more relevant refs, refining cutoff definition of cosmological constant + eq.for regularized pressure added
dc.identifierhttps://arxiv.org/abs/0704.1436
dc.identifierhttp://arxiv.org/abs/0704.1436
dc.identifierPhys.Lett.B651:306-312,2007
dc.identifierdoi:10.1016/j.physletb.2007.06.040
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193900
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleSymmetries and the cosmological constant puzzle
dc.typetext

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