[hep-th] Reminder Strings, Holography & Chaos Seminar Feb 19 2025: Dušan Đorđević

[Mihailo Čubrović]

Dear all,

A reminder to those interested: seminar starting in 15 minutes!

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

-- 
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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