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SUMMARY:Promotionsvortrag Physik: Constructive Quantum Field Theory an
 d Quantum Gravity
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 00000010000000162F2A31C90BD443BF85C506E05FD0F2
DESCRIPTION:Ankündigung des Promotionsvortrags von: Frau Anniela Meli
 ssa Rodriguez Zarate In the last 15 years\, quantum field theory and g
 eneral relativity have been remarkably confirmed\, earning recognition
  through several Nobel Prizes. Yet singular spacetimes challenge gener
 al rela-tivity: as spacetime curvature blows up\, quantum effects can 
 no longer be ignored\, motivating the search for a consistent theory o
 f quantum gravity. My research lies precisely at the interface between
  gravity and quantum theory and aims to sys-tematically address quanti
 sation ambiguities through renormalisation. In this talk\, I will pres
 ent the Hamiltonian renormalisation programme\, a non-perturbative and
  background-independent frame-work that combines ideas from constructi
 ve quantum field theory\, multi-resolution analysis\, and wavelet theo
 ry. The main focus of the presentation will be the application of this
  framework to the U(1)^3 model of (3+1)-dimensional Euclidean quantum 
 gravity\, which can be viewed as the weak-Newton-coupling limit of loo
 p quantum gravity. I will introduce the central ideas behind the renor
 malisation pro-gramme\, describe the construction of the renormalisati
 on flow\, and present the main results ob-tained during my doctoral re
 search\, discussing their implications for the resolution of quantisat
 ion ambiguities in loop quantum gravity. (Vortrag auf Englisch) Dem Vo
 rtrag schließt sich eine Diskussion von 15 Minuten an. Vortrag und Di
 skussion sind öffentlich. Diesen Verfahrensteilen folgt ein nicht öf
 fentliches Rigorosum von 45 Minuten.
DTSTART:20260715T090000Z
DTEND:20260715T103000Z
LOCATION:SR 00.061\, ECAP\, Nikolaus-Fiebiger-Straße 2\, Erlangen
DTSTAMP:20260711T014517Z
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