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Out of equilibrium quantum criticality and holography

Green, A (University College London)
Monday 16 September 2013, 17:00-17:30

Seminar Room 1, Newton Institute


Co-authors: Andrew Berridge (University College London), Joel Moore (UC Berkeley), Shivaji Sondhi (Princeton), Julian Sonner (MIT), Ashwin Vishwanath (UC Berkeley)

The dynamical scaling of quantum critical systems in thermal equilibrium may be inherited in the driven steady-state, leading to universal out-of-equilibrium behaviour. This attractive notion has been demonstrated in a number of cases upon which holography can provide a revealing perspective and new results. I will discuss the application of these ideas to a canonical 2-dimensional system driven out of equilibrium by the application of a strong in-plane electric field. I will focus upon the conditions required for the formation of a universal out of equilibrium steady state and its description using field theoretical and holographic methods. Non-trivial out-of-equilibrium universality is particularly apparent in current noise, which is dual to Hawking radiation in the gravitational system.


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