Berlin 2005 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 48: Gruppenberichte Stark korrelierte atomare Systeme
Q 48.1: Gruppenbericht
Dienstag, 8. März 2005, 16:30–17:00, HU Kinosaal
Strongly correlated phenomena in trapped ultracold gases — •Klaus Osterloh1, Henning Fehrmann1, Veronica Ahufinger1, Adrian Kantian1, Bogdan Damski1, Mikhail Baranov2, Laurent Sanchez-Palencia3, Luis Santos4, Anna Sanpera1, Hans-Ulrich Everts1, and Maciej Lewenstein1 — 1Institut für Theoretische Physik, Universität Hannover — 2Van der Waals-Zeeman Institute, University of Amsterdam — 3Laboratoire de Physique Théorique, Université Paris-Sud — 4Instititut für Theoretische Physik, Universität Stuttgart
We demonstrate that strongly correlated ultracold gases reveal very rich physical features. It is possible to realize a large variety of models analogous to those studied in condensed matter physics, and to explore completely new physical effects. Hannover group was particularly involved in the following studies: a) mixtures of bosons and fermions in optical lattices and their complex phase diagram, b) spin glasses: mixtures in lattice systems with single-particle disorder and random magnetic fields, c) exotic lattices: the (trimerized) Kagomé lattice exhibiting (frustrated) quantum (anti-)ferromagnetic phases, d) dipolar rotating fermi gases: natural candidates of Laughlin-like quantum Hall states, e) dipolar Wigner crystals: criteria of stability, melting point analysis, and comparison with Laughlin states, f) fermi gases in lattices subject to artificial magnetic fields: generalized Hofstaedter butterfly spectra and non-Abelian gauge dynamics.