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Title: Control of tripod-scheme cold-atom wavepackets by manipulating a non-Abelian vector potential
Authors: Zhang, Q. 
Gong, J. 
Oh, C.H. 
Keywords: Coherence lattice of cold-atom wavepackets
Non-Abelian Aharonov-Bohm effect
Non-Abelian geometric phase
Issue Date: Jun-2010
Source: Zhang, Q., Gong, J., Oh, C.H. (2010-06). Control of tripod-scheme cold-atom wavepackets by manipulating a non-Abelian vector potential. Annals of Physics 325 (6) : 1219-1234. ScholarBank@NUS Repository.
Abstract: Tripod-scheme cold atoms interacting with laser beams have attracted considerable interest for their role in synthesizing effective non-Abelian vector potentials. Such effective vector potentials can be exploited to realize an all-optical imprinting of geometric phases onto matter waves. By working on carefully designed extensions of our previous work, we show that coherent lattice structure of cold-atom sub-wavepackets can be formed and that the non-Abelian Aharonov-Bohm effect can be easily manifested via the translational motion of cold atoms. We also show that by changing the frame of reference, effects due to a non-Abelian vector potential may be connected with a simple dynamical phase effect, and that under certain conditions it can be understood as an Abelian geometric phase in a different frame of reference. Results should help design better schemes for the control of cold-atom matter waves. © 2010 Elsevier Inc.
Source Title: Annals of Physics
ISSN: 00034916
DOI: 10.1016/j.aop.2010.04.006
Appears in Collections:Staff Publications

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