Quenching the CME via the gravitational anomaly and holography

October 10, 2017
11:30am to 1:00pm

Room 218

Specialist level
Speaker: 
Guillermo Miláns
Institution: 
IFT
Location&Place: 

Room 218

Abstract: 
In the presence of a gravitational contribution to the chiral anomaly, the chiral magnetic effect induces an energy current proportional to the square of the temperature in equilibrium. In holography the thermal state corresponds to a black hole. We numerically study holographic quenches in which a planar shell of scalar matter falls into a black hole and rises its temperature. During the process the momentum density (energy current) is conserved. The energy current has two components, a non-dissipative one induced by the anomaly and a dissipative flow component. The dissipative component can be measured via the drag it asserts on an additional auxiliary color charge. Our results indicate strong suppression very far from equilibrium. References: - https://arxiv.org/pdf/1709.08384.pdf - Chiral Anomalies and Transport Review: https://arxiv.org/pdf/1610.04413.pdf