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SUMMARY:Emergent gravity from hidden sectors and TT deformations
DTSTART:20201109T140000
DTEND:20201109T150000
DTSTAMP:20260510T001809Z
UID:584bef01299933614fd717c6eea47a1532b17e7fdbb23077e58fcbcf
CATEGORIES:Conferences - Seminars
DESCRIPTION:Elias Kiritsis (APC Paris and University of Crete)\nWe investi
 gate emergent gravity extending the paradigm of the AdS/CFT correspondence
 . The emergent graviton is associated to the (dynamical) expectation value
  of the energy-momentum tensor. We derive the general effective descriptio
 n of such dynamics\, and apply it to the case where a hidden theory genera
 tes gravity that is coupled to the Standard Model. In the linearized descr
 iption\, generically\, such gravity is massive with the presence of an ext
 ra scalar degree of freedom. The propagators of both the spin-two and spin
 -zero modes are positive and well defined. The associated emergent gravita
 tional theory is a bi-gravity theory\, as is (secretly) the case in hologr
 aphy. The background metric on which the QFTs are defined\, plays the role
  of dark energy and the emergent theory has always as a solution the origi
 nal background metric. In the case where the hidden theory is holographic\
 , the overall description yields a higher-dimensional bulk theory coupled 
 to a brane. The effective graviton on the brane has four-dimensional chara
 cteristics both in the UV and IR and is always massive.\n 
LOCATION:Zoom Webinar https://epfl.zoom.us/j/88943395153
STATUS:CONFIRMED
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