[hep-th] Seminar grupe za gravitaciju, čestice i polja, petak, 24. novembar 2023.

[dgocanin]

Zdravo svima,

najavljujem da će u petak, 24. novembra, Dušan Đorđević (Fizički 
fakultet Univerzitet u Beogradu) održati seminar na Institutu za fiziku.

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Naslov: Boundary terms and branes in the first-order gravity

Apstrakt: The story of boundary terms in a gravity action dates back to 
the seventies, yet there are still important questions that need to be 
fully understood. In this talk, we will revisit the role of the 
Gibbons-Hawking-York boundary term in the Einstein-Hilbert gravity, with 
a clear motivation to address the issue of bottom-up AdS/BCFT duality in 
a case where bulk geometry is Riemann-Cartan. We will comment on 
different approaches to GHY-like boundary terms in this scenario and 
then use our knowledge to understand the issue of end-of-the-world 
branes with (traditional) Neumann boundary conditions in the first-order 
gravity, which is a necessary step to address the AdS/BCFT duality 
adequately. Our analysis will be based on a simple set of gravity 
theories in different dimensions. Apart from this, we will also touch 
upon the issue of black hole thermodynamics.

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Seminar počinje u 11:15 uživo na Institutu za fiziku u sali 360 na 2. 
spratu. Osim toga, seminar se može pratiti i preko linka

https://gravityserver.ipb.ac.rs/b/mar-ae0-f4q-qww


Pozdrav,
Dragoljub