Time-ordered Perturbation Theory on Noncommutative Spacetime II: Unitarity

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dc.creatorLiao, Yi
dc.creatorSibold, Klaus
dc.date2002-06-02
dc.date2002-07-03
dc.date.accessioned2026-07-07T11:32:02Z
dc.date.available2026-07-07T11:32:02Z
dc.descriptionWe examine the unitarity issue in the recently proposed time-ordered perturbation theory on noncommutative (NC) spacetime. We show that unitarity is preserved as long as the interaction Lagrangian is explicitly Hermitian. We explain why it makes sense to distinguish the Hermiticity of the Lagrangian from that of the action in perturbative NC field theory and how this requirement fits in the framework.
dc.description19 pages, 3 figures using axodraw; version 2: typos fixed and very minor rewording, to appear in Eur Phys J C
dc.identifierhttps://arxiv.org/abs/hep-th/0206011
dc.identifierhttp://arxiv.org/abs/hep-th/0206011
dc.identifierEur.Phys.J.C25:479-486,2002
dc.identifierdoi:10.1007/s10052-002-1018-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197467
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTime-ordered Perturbation Theory on Noncommutative Spacetime II: Unitarity
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