[phys4phys] Strings, Holography & Chaos Seminar Feb 19 2025 12:00: Dušan Đorđević

[Mihailo Čubrović]

Dear colleagues,

On February 19 (Wednesday) at 12:00 CET we will have a Zoom seminar on 
holography with torsion, by Dušan Đorđević. Title, abstract and Zoom 
coordinates follow.

Dušan Đorđević
Department of Physics, University of Belgrade

The role of torsion in holographic conductivity

Generalizing the usual setup for holographic duality, where bulk 
spacetime is described by pseudo-Riemannian geometry, we consider a 
Riemann-Cartan bulk with non-trivial torsion as a background for an 
electromagnetic gauge field dual to U(1) boundary current. Working in 
the probe limit, we explore how the bulk torsion, which induces spin 
current at the boundary, affects the electric conductivity of the 
boundary theory. We consider standard types of non-minimal couplings 
between torsion and the electromagnetic field found in the literature, 
and the results indicate that these torsion couplings are more suitable 
candidates, compared to the common minimal coupling regime, for a 
holographic description of the existing experimental findings regarding 
conductivity.

Topic: Strings, Holography & Chaos Seminar Feb 19 2025
Time: Feb 19, 2025 11:45 AM Belgrade, Bratislava, Ljubljana

Join Zoom Meeting
https://zoom.us/j/92579801538?pwd=B2HBPLG37E6b9zmPKnYcmqS2WIGUb6.1

Meeting ID: 925 7980 1538
Passcode: 570456

Hope to see many of you!


-- 
Dr. Mihailo Čubrović

Center for the Study of Complex Systems
Institute of Physics Belgrade
National Institute of the Republic of Serbia
Pregrevica 118, 11080 Belgrade, Serbia
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