High Energy Physics ONLINE Seminar TOMORROW (Sun)

[HECAP - Margherita Di Giovannantonio]

*_HIGH ENERGY PHYSICS ONLINE SEMINARS_ **__*



*Thursday, 14 March* 2024, at *16:00*  - *ON LINE ONLY - 
https://indico.ictp.it/event/10640//
<https://indico.ictp.it/event/10640/> /*

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Zimo Sun (Princeton University)

*“(A)dS Partition Function from Bulk and Edge Characters ”*

_Abstract_

The one-loop partition function of quantum fields on a fixed (A)dS 
background is an important quantity in holography.  In this talk, I will 
derive a new integral representation of such partition functions, which 
involves two group characters, e.g. the bulk character and the edge 
character.
Technically, this integral representation is a useful tool to evaluate 
functional determinants, in particular for higher spin fields. The 
higher spin holography can be understood as a miraculous bulk and edge 
cancellation in this picture.
Conceptually, the decomposition of bulk and edge characters describes 
precisely the bulk and edge modes of any spinning fields.
I will comment on the physical picture of the edge modes, which are 
localized on a horizon.
/The talk will be based on: 2009.12464 
<https://arxiv.org/abs/2009.12464>, 2010.15826 
<https://arxiv.org/abs/2010.15826> and 2111.04591 
<https://arxiv.org/abs/2111.04591>./


*To join via Zoom*:

Zoom link:https://zoom.us/j/98458928909 <https://zoom.us/j/98458928909>


Meeting ID:  984 5892 8909

Passcode:  400686