Microcausality in Curved Space-Time

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dc.creatorDubovsky, Sergei
dc.creatorNicolis, Alberto
dc.creatorTrincherini, Enrico
dc.creatorVilladoro, Giovanni
dc.date2007-09-10
dc.date.accessioned2026-07-07T11:19:16Z
dc.date.available2026-07-07T11:19:16Z
dc.descriptionIt is well known that in Lorentz invariant quantum field theories in flat space the commutator of space-like separated local operators vanishes (microcausality). We provide two different arguments showing that this is a consequence of the causal structure of the classical theory, rather than of Lorentz invariance. In particular, microcausality holds in arbitrary curved space-times, where Lorentz invariance is explicitly broken by the background metric. As illustrated by an explicit calculation on a cylinder this property is rather non trivial at the level of Feynman diagrams.
dc.description21 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0709.1483
dc.identifierhttp://arxiv.org/abs/0709.1483
dc.identifierPhys.Rev.D77:084016,2008
dc.identifierdoi:10.1103/PhysRevD.77.084016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193623
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleMicrocausality in Curved Space-Time
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