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METHOD:PUBLISH
X-WR-CALNAME:INFN-LNF
X-ORIGINAL-URL:https://w3.lnf.infn.it
X-WR-CALDESC:Eventi per INFN-LNF
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TZID:Europe/Rome
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TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20160327T010000
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TZNAME:CET
DTSTART:20161030T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20160912T110000
DTEND;TZID=Europe/Rome:20160912T123000
DTSTAMP:20260901T014854
CREATED:20171026T122714Z
LAST-MODIFIED:20171026T122714Z
UID:6935-1473678000-1473683400@w3.lnf.infn.it
SUMMARY:New perspectives in effective quantum gravity and cosmological perturbation theory
DESCRIPTION:In this talk I will show how the general framework of effective quantum gravity proposed by Brunetti\, Fredenhagen and myself can be used to study problems in quantum cosmology. This formulation allows to derive some known results in (first order) cosmological perturbation theory from first principles and it provides a robust tool for computing higher order corrections. Conceptually\, it works as a test ground for new ideas concerning construction of gauge invariant observables in effective quantum gravity. The non-local character of these observables leads to new interesting combinatorial structures arising in renormalization.
URL:/event/new-perspectives-in-effective-quantum-gravity-and-cosmological-perturbation-theory/
LOCATION:Aula Seminari\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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