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The University of Southampton
STAG Research Centre

String Theory seminar - Saso Grozdanov Seminar

Time:
15:00 - 17:00
Date:
13 December 2017
Venue:
54/7033(7C)

For more information regarding this seminar, please email Olga Papadoulaki, Brandon Robinson at [email protected], [email protected] .

Event details

Generalised global symmetries in field theory and holography

In my talk, I will discuss the concept of generalized global symmetries and their applications. From the point of view of effective field theory, I will first present a recent, comprehensive reformulation of magnetohydrodynamics, which is a theory of low-energy excitations in plasmas. I will then discuss our recent construction of holographic duals to theories with generalised global symmetries. Of particular focus will be a five-dimensional bulk theory with a dynamical two-form gauge field, which is dual to a field theory in which magnetohydrodynamics captures the dynamics of its infra-red limit. In the final part of this talk, I argue that generalised global symmetries are a powerful tool for constructing theories with dynamical defects even in the absence of known microscopic origins of such symmetries. As an example, I will use the theory of viscoelastic states and formulate it both in effective field theory and holography.

Speaker information

Saso Grozdanov , Massachusetts Institute of Technology, USA.

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