REMINDER - High Energy Physics Seminar TODAY - Post

[HECAP - Margherita Di Giovannantonio]

*_HIGH ENERGY PHYSICS SEMINARS_*


*Tuesday, 26 May *2026, at *16:00* - *_Euler Lecture 
Hall_***-*https://indico.ictp.it/event/11286/*


Boris Post (University of Oxford)


*“A Universal Sum Over Topologies in 3d Gravity"*
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_Abstract_

In this talk, I will explore how the sum over topologies in pure AdS_3​ 
quantum gravity furnishes a consistent statistical interpretation of the 
boundary CFT_2. By formulating a statistical version of the conformal 
bootstrap, which combines crossing symmetry with typicality at high 
energies, we will discover a large set of non-handlebody topologies in 
the bulk (of which I will give some examples) that are needed for 
consistency of the boundary description. Interestingly, this set 
contains only on-shell (i.e. hyperbolic) 3-manifolds, but not all of 
them. This suggests that the full sum over all on-shell saddles in 3d 
gravity may be a highly non-minimal solution of the statistical bootstrap.
/This talk is based on 2601.07906 with Belin, Collier, Eberhardt and Liska./


To attend via _*Zoom*_, please *_register_* here:
https://zoom.us/meeting/register/vmsQrjIvTVuWOYV7g7T5Qg