Speaker
Sumilan Banerjee (Indian Institute of Science, Bangalore)
Date & Time
Tue, 19 February 2019, 12:30 to 14:30
Venue
Emmy Noether Seminar Room, ICTS Campus, Bangalore
Resources
Abstract
How are quasiparticle excitations generated when a gapless state of interacting fermions without any quasiparticle, i.e. a non-Fermi liquid (NFL), is transformed into a more conventional Fermi-Liquid(FL) state under non-equilibrium evolution? Motivated by this question, we study sudden and slow quenches in an interacting model having a quantum phase transition from a Sachdev-Ye-Kitaev (SYK) NFL to a FL. The model, which can be realized in a graphene flake connected with leads, has SYK fermions coupled to non-interacting lead fermions