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    Université de Fribourg

    Quench dynamics and Hall response of interacting Chern insulators

    Schüler, Michael ; Budich, Jan Carl ; Werner, Philipp

    In: Physical Review B, 2019, vol. 100, no. 4, p. 041101

    We study the coherent nonequilibrium dynamics of interacting two-dimensional systems after a quench from a trivial to a topological Chern insulator phase. While the many-body wave function is constrained to remain topologically trivial under local unitary evolution, we find that the Hall response of the system can dynamically approach a thermal value of the postquench Hamiltonian, even though...