String theory T-duality and the zero point length of spacetime

dc.creatorSmailagic, A.
dc.creatorSpallucci, E.
dc.creatorPadmanabhan, T.
dc.date2003-08-19
dc.date.accessioned2026-07-07T04:15:37Z
dc.date.available2026-07-07T04:15:37Z
dc.descriptionIt has been often conjectured that the correct theory of quantum gravity will act as a UV regulator in the low energy limit of quantum field theory. Earlier work has shown that if the path integral defining the quantum field theory propagator is modified, so that the amplitude is invariant under the duality transformation l--> 1/l where l is the length of the path, then the propagator is UV-finite and exhibits a ``zero-point length'' of the spacetime. Since string theory uses extended structures and has a T-duality, these results should also emerge directly from string theory. We show, by explicit path integral computation, that this is indeed the case. The lowest order string theory correction to the propagator is the same as that obtained by the hypothesis of path integral duality.
dc.description4 pages, Revtex, no figures
dc.identifierhttps://arxiv.org/abs/hep-th/0308122
dc.identifierhttp://arxiv.org/abs/hep-th/0308122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/52076
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleString theory T-duality and the zero point length of spacetime
dc.typetext

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