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Collective quantum dynamics: From ergodicity to many-body localization

Prof. Dr. Michael Knap (Technische Universität München)

Datum:  27.06.2016 17:15 Uhr – 18:30 Uhr

Ort: Hörsaal H 030, Fakultät für Physik der LMU, Schellingstraße 4, München

It has been the believe that generic quantum many-body systems necessarily approach thermal equilibrium after a long time evolution. As a consequence any quantum information encoded in the initial state is lost in the course of the dynamics. However, recently the generality of this assumption of ergodic evolution has been put into question. In this talk, we will discuss how ergodicity - and with that fundamental concepts of statistical mechanics - can break down in a disordered many-body system by the phenomenon of many-body localization. Many-body localization describes an exotic phase of matter in which quantum information can prevail for infinitely long times even at finite temperatures. We will analyze the generic phase diagram of such systems, which consist of an ergodic phase at weak disorder and a many-body localized phase at strong disorder. Furthermore, we demonstrate how the peculiar properties of the many-body localization transition can be characterized in experiments.

Student event: Meet the speaker
We invite you to a student-only discussion-round with Prof. Dr. Michael Knap before his Munich Physics Colloquium talk.
Be curious and feel free to ask any question.
Monday, 27 June 2016, 16:00 h
Room H537 (top floor), Fakultät für Physik der LMU, Schellingstraße 4, München


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