Seminario di Fisica Teorica

Martedi' 2 Aprile 2019

 

Ora: 13.45

 

Aula: 500

 

Titolo:  Higher-form global symmetries and applications in hydrodynamic limit of strongly interacting QFTs


Speaker: Dr. Nick Poovuttikul (University of Iceland)


Abstract:

In this talk, I will discuss recent developments in understanding the higher-form global symmetry. 
In particular, I will discuss the existence of 1-form global symmetry in electromagnetism in 3+1 dimensions and theory of elasticity in 2+1 dimensions. This allows one to systematically construct low energy effective theories of fluid coupled to dynamical electromagnetic field (magnetohydrodynamics) and to elastic medium (hydrodynamics with spontaneous broken translational symmetry). If time allows, I will also be discussing various interesting limits of the effective theory of higher-form symmetries, central extension of the group involving 0-form and 1-form symmetries as well as physical consequences.

Seminario di Fisica Teorica

Mercoledi' 10 Aprile 2019

 

Ora: 14.30

 

Aula: 500

 

Titolo:  Holographic correlators and the information paradox


Speaker: Prof. Stefano Giusto (Universita' di Padova)


Abstract:

Some signatures of information loss are imprinted in the correlators containing the heavy operators dual to the black hole microstates. By using the classical geometries dual to particular microstates, we will compute some of these correlators and show how information is preserved already in the large N limit. The same techniques can be more generally applied to derive the four-point correlators of chiral primary operators in a strongly-coupled two-dimensional CFT.

 

 

 

 

 

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Questa pagina e' aggiornata da
Laura Opisso
Segreteria Scientifica INFN
Sezione di Genova