Hannover 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 63: Ultra-cold atoms, ions and BEC V (with A)
Q 63.8: Vortrag
Freitag, 4. März 2016, 12:45–13:00, f107
Coupling Identical 1D Many-Body Localized Systems — •Pranjal Bordia1,2, Henrik Lüschen1,2, Sean Hodgman1,2, Michael Schreiber1,2, Immanuel Bloch1,2, and Ulrich Schneider1,2 — 1Facultät für Physik, LMU, München — 2Max-Planck Institut für QuantenOptik
Many-Body Localization (MBL) marks a new paradigm in condensed matter and statistical physics. It describes a generic insulating phase in which an interacting many-body system fails to serve as its own heat bath and thermalization fails even in excited many-body states.
We experimentally study the dynamics of coupling identically disordered 1D MBL systems. Using a gas of ultracold fermions loaded in optical lattices, we prepare an out-of-equilibrium density wave and monitor its relaxation. We find striking difference between Anderson and MBL systems. While the Anderson case remains localized, coupling MBL systems with each other shows slow glassy relaxation and de-localizes the entire system.