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BEGIN:VEVENT
SUMMARY:Gerardus 't Hooft (Utrecht University)
DTSTART:20210415T150000Z
DTEND:20210415T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/1/">
 Horizons at a quantised black hole</a>\nby Gerardus 't Hooft (Utrecht Univ
 ersity) as part of Quantum Gravity and All of That\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Netta Engelhardt (MIT)
DTSTART:20210429T150000Z
DTEND:20210429T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/2/">
 Simplicity in the Black Hole Interior</a>\nby Netta Engelhardt (MIT) as pa
 rt of Quantum Gravity and All of That\n\n\nAbstract\nIt has often been spe
 culated that the black hole interior in holography has high computational 
 complexity in the dual CFT. I will argue that operators in the black hole 
 interior are simple whenever they lie outside of the outermost (quantum) e
 xtremal surface. That is\, that non-minimal quantum extremal surfaces are 
 the only source of high complexity in AdS/CFT. This is the converse of the
  so-called Python's lunch conjecture\, which proposes that operators with 
 support behind the outermost quantum extremal surface - e.g. Hawking partn
 ers - are highly complex.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Roger Penrose (Oxford University)
DTSTART:20210513T150000Z
DTEND:20210513T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/3/">
 Why Resolving the Singularity Problem of General Relativity is Not Just a 
 Quantum Gravity Issue</a>\nby Roger Penrose (Oxford University) as part of
  Quantum Gravity and All of That\n\n\nAbstract\nOver many years\, there ha
 s been much impressive theorizing about how quantum mechanics might modify
  the space-time structure of general relativity at extremely tiny scales. 
 A good deal of this work has been aimed at resolving the space-time singul
 arity problem. However\, there are strong reasons for believing that this 
 cannot provide an overall resolution of that problem\, the big bang having
  a totally different structure from the expected singularities in black ho
 les.\n\nConformal geometry provides a very different outlook\, revealing i
 ssues deeply related to the 2nd law of thermodynamics and leading to an ex
 otic cosmological picture (conformal cyclic cosmology\, or CCC)\, with var
 ious predictions\, some now confirmed in observations of previously unexpe
 cted effects—most particularly those referred to as “Hawking points”
 .\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Geoffrey Penington (Berkeley University)
DTSTART:20210527T150000Z
DTEND:20210527T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/4/">
 Finding Pythons in Unexpected Places</a>\nby Geoffrey Penington (Berkeley 
 University) as part of Quantum Gravity and All of That\n\n\nAbstract\nWe a
 rgue that novel (highly nonclassical) quantum extremal surfaces play a cru
 cial role in reconstructing the black hole interior even for isolated\, si
 ngle-sided\, non-evaporating black holes (i.e. with\nno auxiliary reservoi
 r). Specifically\, any code subspace where interior\noutgoing modes can be
  excited will have a quantum extremal surface in\nits maximally mixed stat
 e. We argue that as a result\, reconstruction of\ninterior outgoing modes 
 is always exponentially complex. Our\nconstruction provides evidence in fa
 vor of a strong Python's lunch\nproposal: that nonminimal quantum extremal
  surfaces are the exclusive\nsource of exponential complexity in the holog
 raphic dictionary. We also\ncomment on the relevance of these quantum extr
 emal surfaces to the\ngeometrization of state dependence in the typicality
  arguments for\nfirewalls.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thomas Mertens (Ghent University)
DTSTART:20210610T150000Z
DTEND:20210610T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/5/">
 Bulk observables in Jackiw-Teitelboim gravity</a>\nby Thomas Mertens (Ghen
 t University) as part of Quantum Gravity and All of That\n\n\nAbstract\nUs
 ing a definition of bulk diff-invariant observables\, we go into the bulk 
 of 2d Jackiw-Teitelboim gravity. By mapping the computation to a Schwarzia
 n path integral\, we study exact bulk correlation functions and discuss th
 eir physical implications. We describe how the black hole thermal atmosphe
 re gets modified by quantum gravitational corrections. Finally\, we will d
 iscuss how higher topological effects further modify the spectral density 
 and detector response in the Unruh heat bath.\nBased on arXiv:1902.11194\,
  1903.10485\, 2005.13058 and work in progress.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Samir Mathur (Ohio State University)
DTSTART:20210617T150000Z
DTEND:20210617T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/6/">
 Contrasting the fuzzball and wormhole paradigms</a>\nby Samir Mathur (Ohio
  State University) as part of Quantum Gravity and All of That\n\nAbstract:
  TBA\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:James Gates (Brown University)
DTSTART:20210708T150000Z
DTEND:20210708T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/7/">
 Effective Methods For Component Field Transparency For Arbitrary Superfiel
 ds</a>\nby James Gates (Brown University) as part of Quantum Gravity and A
 ll of That\n\n\nAbstract\nIn 1974 Salam and Strathdee introduced methods b
 ased superspace\nwhich facilitated the construction of arbitrary represent
 ations of\nspacetime supersymmetry.  While this approach allows for the de
 rivation\nof component field results for low dimensions\, it becomes remar
 kably\nopaque for higher dimensional superfields.  To overcome this disabi
 lity\,\nrecently there has been introduced new methods based on 'adynkra'\
 nnetworks\, Dynkin Label/Young Tableaux\, Plethysm\, and IT algorithms.\nD
 etails of this approach are illustrated in the case of ten and eleven\ndim
 ensional theories.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Steve Giddings (UCSB)
DTSTART:20210902T150000Z
DTEND:20210902T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/10
DESCRIPTION:by Steve Giddings (UCSB) as part of Quantum Gravity and All of
  That\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gia Dvali (Munich\, Max Planck Institute & Munich U.\, ASC)
DTSTART:20210916T150000Z
DTEND:20210916T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/11/"
 >Towards demystification of black holes</a>\nby Gia Dvali (Munich\, Max Pl
 anck Institute & Munich U.\, ASC) as part of Quantum Gravity and All of Th
 at\n\n\nAbstract\nFor a long time\, certain well-known properties of Black
  holes\, such as the area form of the entropy as well as a long time-scale
  of information retrieval\, have been considered to be mysteries. We expla
 in that black holes turn out not to be exceptional in this respect. Instea
 d\, the above seemingly-mysterious properties follow from certain universa
 l bounds on information storage and retrieval. They are imposed by unitari
 ty and are fully non-perturbative. The objects that saturate these consist
 ency bounds exhibit the properties identical to black holes. A long list o
 f examples includes saturated solitons\, instantons and baryons in renorma
 lizable field theories. Perhaps the most striking example is the color gla
 ss condensate in ordinary QCD. We predict new observable phenomena for suc
 h objects\, including black holes. We focus on the phenomenon of the ``mem
 ory burden"\, the essence of which is that the information pattern stored 
 by the system back-reacts and resists decay. For black holes\, this predic
 ts a dramatic deviation from usually assumed evolution\, and has potential
 ly important implications for primordial black holes as dark matter candid
 ates.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Leonard Susskind (Stanford University)
DTSTART:20211014T150000Z
DTEND:20211014T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/12/"
 >de Sitter Holography</a>\nby Leonard Susskind (Stanford University) as pa
 rt of Quantum Gravity and All of That\n\n\nAbstract\nI will discuss aspect
 s of de Sitter holography\, possibly including Matrix theory\, entanglemen
 t\, and chaos.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Brandenberger (McGill University)
DTSTART:20211028T150000Z
DTEND:20211028T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/13/"
 >Nonsingular Cosmologies and Black Holes with S-Branes</a>\nby Robert Bran
 denberger (McGill University) as part of Quantum Gravity and All of That\n
 \n\nAbstract\nS-Branes are objects motivated by superstring theory which a
 ppear in a low energy effective action for our four dimensional space-time
 . I will demonstrate how such branes can be used to obtain nonsingular cos
 mologies (specifically\, a nonsingular realization of the Ekpyrotic scenar
 io) and nonsingular black holes.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gabriele Veneziano (CERN\, Collège de France)
DTSTART:20211104T160000Z
DTEND:20211104T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/14
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGHOLQI/14/"
 >From Newtonian to ultra-relativistic gravitational scattering at 3rd post
 -Minkowskian order</a>\nby Gabriele Veneziano (CERN\, Collège de France) 
 as part of Quantum Gravity and All of That\n\n\nAbstract\nUsing the eikona
 l approximation for quantum scattering I will argue that the non-relativis
 tic (Newtonian) and ultra-relativistic (massless) limits of classical grav
 itational scattering are smoothly connected at 3rd post-Minkowskian (3PM) 
 order provided radiation reaction effects are properly taken into account.
  This is how a two-year-old puzzle raised by the first 3PM result by Bern 
 et al. was solved about a year ago. Extending the connection to the next P
 M order looks both important and non-trivial.\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Slava Mukhanov (Munich University\, ASC)
DTSTART:20211118T160000Z
DTEND:20211118T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/15
DESCRIPTION:by Slava Mukhanov (Munich University\, ASC) as part of Quantum
  Gravity and All of That\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Elias Kiritsis (Université de Paris\; University of Crete)
DTSTART:20211125T160000Z
DTEND:20211125T170000Z
DTSTAMP:20260422T225821Z
UID:QGHOLQI/16
DESCRIPTION:by Elias Kiritsis (Université de Paris\; University of Crete)
  as part of Quantum Gravity and All of That\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QGHOLQI/16/
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