Coupling Identical one-dimensional Many-Body Localized Systems.
We experimentally study the effects of coupling one-dimensional many-body localized systems with identical disorder. Using a gas of ultracold fermions in an optical lattice, we artificially prepare an initial charge density wave in an array of 1D tubes with quasirandom on-site disorder and monitor the subsequent dynamics over several thousand tunneling times. We find a strikingly different behavior between many-body localization and Anderson localization. While the noninteracting Anderson case remains localized, in the interacting case any coupling between the tubes leads to a delocalization of the entire system.
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
Pranjal
P
Bordia
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
Henrik P
HP
Lüschen
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia.
Sean S
SS
Hodgman
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
Michael
M
Schreiber
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
Immanuel
I
Bloch
Fakultät für Physik, Ludwig-Maximillians-Universität München, Schellingstraße 4, 80799 Munich, Germany.|Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
Ulrich
U
Schneider