Volume 85, Number 1, January 2009
|Number of page(s)||6|
|Section||Atomic, Molecular and Optical Physics|
|Published online||16 January 2009|
Phonon-induced artificial magnetic fields in optical lattices
Clarendon Laboratory, University of Oxford - Parks Road, Oxford OX1 3PU, UK, EU
2 Keble College, University of Oxford - Parks Road, Oxford OX1 3PG, UK, EU
Corresponding author: email@example.com
Accepted: 4 December 2008
We investigate the effect of a rotating Bose-Einstein condensate on a system of immersed impurity atoms trapped by an optical lattice. We analytically show that for a one-dimensional, ring-shaped setup the coupling of the impurities to the Bogoliubov phonons of the condensate leads to a non-trivial phase in the impurity hopping. The presence of this phase can be tested by observing a drift in the transport properties of the impurities. These results are quantitatively confirmed by a numerically exact simulation of a two-mode Bose-Hubbard model. We also give analytical expressions for the occurring phase terms for a two-dimensional setup. The phase realises an artificial magnetic field and can, for instance, be used for the simulation of the quantum Hall effect using atoms in an optical lattice.
PACS: 37.10.Jk – Atoms in optical lattices / 03.75.-b – Matter waves / 67.85.-d – Ultracold gases, trapped gases
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.