Found 4 result(s)

29.06.2021 (Tuesday)

The classical interior of black holes in holography

Regular Seminar Sean Hartnoll (ITP Stanford University)

at:
13:30 IC
room zoom 871 9223 5980
abstract:

The exterior dynamics of black holes has played a major role in holographic duality, describing the approach to thermal equilibrium of strongly coupled media. The interior dynamics of black holes in a holographic setting has, in contrast, been largely unexplored. I will describe recent work investigating the classical interior dynamics of various holographic black holes. I will discuss the nature of the singularity, the absence of Cauchy horizons and a new kind of chaotic behavior that emerges in the presence of charged scalar fields. [please email a.held@imperial.ac.uk for zoom link or password]

30.11.2005 (Wednesday)

What is the phase structure of N=4 SYM theory?

Regular Seminar Sean Hartnoll (DAMTP)

at:
13:15 KCL
room 423
abstract:

I will review recent results at strong and weak coupling in N=4 SYM theory at finite temperature. I will point out that retarded correlators have a qualitatively different analytic structure in the weak a strong coupling limits and will argue that this either necessitates a phase transition in the theory or requires that we revise our current understanding of weakly coupled plasmas.

24.11.2005 (Thursday)

What is the Phase Structure of N=4 SYM Theory?

Regular Seminar Sean Hartnoll (DAMTP)

at:
14:00 QMW
room 112
abstract:

18.11.2004 (Thursday)

A black hole instability as a phase transition in field theory

Regular Seminar Sean Hartnoll (Cambridge)

at:
16:30 IC
room H503
abstract:

Generalised black holes have a horizon given by an arbitrary Einstein manifold. I will describe a criterion for the classical stability of these black holes. Roughly, spherical horizons are stable but lemon-shaped horizons can be unstable. In Anti-de Sitter space, these black holes are dual to gauge theory on a curved background given by the same Einstein manifold. I will argue that the dual thermal field theory effect is a novel phase transition induced by inhomogeneous Casimir pressures and characterised by a condensation of pressure.