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Title: Simulating and detecting artificial magnetic fields in trapped atoms
Authors: Rosenkranz, M.
Klein, A.
Jaksch, D. 
Issue Date: 2010
Citation: Rosenkranz, M., Klein, A., Jaksch, D. (2010). Simulating and detecting artificial magnetic fields in trapped atoms. Physical Review A - Atomic, Molecular, and Optical Physics 81 (1) : -. ScholarBank@NUS Repository.
Abstract: A Bose-Einstein condensate exhibiting a nontrivial phase induces an artificial magnetic field in immersed impurity atoms trapped in a stationary, ring-shaped optical lattice. We present an effective Hamiltonian for the impurities for two condensate setups: the condensate in a rotating ring and in an excited rotational state in a stationary ring. We use Bogoliubov theory to derive analytical formulas for the induced artificial magnetic field and the hopping amplitude in the limit of low condensate temperature where the impurity dynamics is coherent. As methods for observing the artificial magnetic field we discuss time-of-flight imaging and mass current measurements. Moreover, we compare the analytical results of the effective model to numerical results of a corresponding two-species Bose-Hubbard model. We also study numerically the clustering properties of the impurities and the quantum chaotic behavior of the two-species Bose-Hubbard model. © 2010 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.81.013607
Appears in Collections:Staff Publications

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