Berlin 2014 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 32: Poster: Quantum gases, ultracold atoms and molecules

Q 32.28: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

BEC dynamics in the presence of a synthetic magnetic field — •Andrey R. Kolovsky1, Fabian Grusdt2, and Michael Fleischhauer21Siberian Federal University, 660049 Krasnoyarsk, Russia — 2TU Kaiserslautern, 67663 Kaiserslautern, Germany

We study dynamics of BEC of non-interacting atoms in a 2D parabolic lattice (i.e., the lattice plus harmonic confinement) in the presence of a synthetic magnetic field. The analysis is preceded by thorough consideration of the single-particle spectrum of the system. We show that generally this spectrum consists of two, regular and chaotic components. The relative fraction of chaotic eigenstates depends on the mean energy of an atom and changes from zero to one when the energy is increased. This property of the system is reflected in BEC dynamics which we assume to be induced by a sudden shift of the harmonic trap origin or by a time-dependent flux (a circular electric field).

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2014 > Berlin