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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 3: AdS/CFT I

MP 3.2: Vortrag

Dienstag, 14. März 2017, 09:25–09:45, SFG 2010

Quantum Quenches in a Holographic Kondo Model — Johanna Erdmenger^1,2, Mario Flory^1,3, •Max-Niklas Newrzella¹, Migael Strydom¹, and Jackson M.S. Wu⁴ — ¹Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, 80805, Munich, Germany — ²Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany — ³Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland — ⁴Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA

We apply gauge/gravity duality to study the non-equilibrium dynamics induced by quenching the interaction parameter between a magnetic impurity and a strongly coupled system of fermions. In the holographic limit, this model exhibits a phase transition at a critical temperature, below which the impurity is partially screened. We investigate the quasinormal modes in both phases, and comment on the dynamical critical behaviour at around the critical point.