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Quasi-relativistic behavior of cold atoms in light fields
G. Juzeliunas, J. Ruseckas, M. Lindberg +2
We study the influence of three laser beams on the center of mass motion of cold atoms with internal energy levels in a tripod configuration. We show that similar to electrons in g…
Formation of solitons in atomic Bose-Einstein condensates by dark-state adiabatic passage
G. Juzeliunas, J. Ruseckas, P. Öhberg +1
We propose a new method of creating solitons in elongated Bose-Einstein Condensates (BECs) by sweeping three laser beams through the BEC. If one of the beams is in the first order…
Elementary Excitations of a Bose-Einstein Condensate in an Effective Magnetic Field
D. R. Murray, P. Öhberg, Damiá Gomila +1
We calculate the low energy elementary excitations of a Bose-Einstein Condensate in an effective magnetic field. The field is created by the interplay between light beams carrying…