Interacting Field Theories in de Sitter Space are Non-Unitary

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dc.creatorAkhmedov, Emil T.
dc.creatorBuividovich, P. V.
dc.date2008-08-29
dc.date2008-09-27
dc.date.accessioned2026-07-07T11:45:40Z
dc.date.available2026-07-07T11:45:40Z
dc.descriptionIt is well known that there should be a total cancellation of the IR divergences in unitary interacting field theories, such as QED and gravity. The cancellation should be at all orders between loop and tree level contributions to cross--sections. This is the crucial fact related to the unitarity of the evolution operator (S--matrix) of the underlying interacting field theory. In this note we show that such a cancellation does {\it not} happen in de Sitter space.
dc.description10 pages RevTeX, 1 figure. Additional arguments are given, statements are made more precise
dc.identifierhttps://arxiv.org/abs/0808.4106
dc.identifierhttp://arxiv.org/abs/0808.4106
dc.identifierPhys.Rev.D78:104005,2008
dc.identifierdoi:10.1103/PhysRevD.78.104005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201959
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInteracting Field Theories in de Sitter Space are Non-Unitary
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