Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 61: Quantum Gases: Fermions II
Q 61.7: Vortrag
Freitag, 4. März 2016, 12:30–12:45, e001
Many-body localization in the presence of photon scattering — •Henrik Lueschen1,2, Pranjal Bordia1,2, Sean Hodgman1,2, Michael Schreiber1,2, Immanuel Bloch1,2, and Ulrich Schneider1,2,3 — 1Max-Planck-Institut für Quantenoptik, Garching — 2Ludwig-Maximilians-Universität, München — 3Cavendish Laboratory, Cambridge
In recent years, disordered systems have been the subject of great interest. Especially, Many-Body Localization (MBL) has emerged as a new paradigm for ergodicity breaking robust to interactions in closed quantum systems. While any coupling of an MBL system to an external bath is expected to restore ergodicity, it is still unclear to what extend the dynamics are affected by the proximity of the MBL phase.
Here, we investigate a fermionic, quasi-disordered MBL system in the presence of weak photon scattering. This introduces non-unitary measurement processes, acting as an infinite bandwidth bath, and particle loss. We monitor the transient behaviour of our system and find a strong dependence on both the disorder strength and interactions.