"Metals, insulators and momentum dissipation in holography," by Blaise Goutéraux (Stanford University)

Thursday, March 5, 2015 - 10:00am to 11:00am
TEP Seminars

TEP Seminar

Physics and Astronomy Building (PAB) Room 4-708
Thursday, March 5, 2015
10-11 AM

Guest Speaker: Blaise Goutéraux (Stanford University)

Talk Title: "Metals, insulators and momentum dissipation in holography"


In this talk,  I will summarize recent progress into constructing black holes dual to systems with momentum dissipation via the gauge/gravity duality. Applying a small electric field, we can measure their conductivity using linear response. I will describe how the DC conductivity can be expressed in terms of horizon data of the black hole. Scaling properties of the metric and associated bulk matter fields govern the temperature scaling of the DC conductivity, which allows to classify black holes dual to metallic and insulating states. Intriguingly, their DC conductivity separates into two pieces, which seem to be related to momentum dissipation and pair creation respectively. Their boundary interpretation is however not so straightforward.

PAB 4-708