Maths HEP Lunchtime Seminars: Entanglement entropy in a holographic model of the Kondo effect
8 May 2015 13:00 in CM221
My starting point is a holographic model of the Kondo effect recently
proposed by Erdmenger et. al., i.e. of a magnetic impurity interacting
with a strongly coupled system. Specifically, I focus on the challenges of
computing gravitational backreaction in this model, which demands a study
of the Israel junction conditions. I present general results on these
junction conditions, including analytical solutions for certain toy
models, that may be relevant also more generally in the AdS/boundary CFT
correspondence. Furthermore, similar junction conditions for a bulk
Chern-Simons field appearing in the holographic Kondo model are discussed.
I then focus on the computation and interpretation of entanglement entropy
in this holographic model.