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  Geometric phases of mesoscopic spin in Bose-Einstein condensates

Fuentes-Guridi, I., Pachos, J., Bose, S., Vedral, V., & Choi, S. (2002). Geometric phases of mesoscopic spin in Bose-Einstein condensates. Physical Review A, 66(2): 022102. 022102. Retrieved from http://link.aps.org/abstract/PRA/v66/e022102.

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Fuentes-Guridi, I., Author
Pachos, J.1, Author
Bose, S., Author
Vedral, V., Author
Choi, S., Author
Affiliations:
1Max Planck Society, ou_persistent13              

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 Abstract: We propose a possible scheme for generating spin-J geometric phases using a coupled two-mode Bose-Einstein condensate (BEC). First we show how to observe the standard Berry phase using Raman coupling between two hyperfine states of the BEC. We find that the presence of intrinsic interatomic collisions creates degeneracy in energy that allows implementation of the non- Abelian geometric phases as well. The evolutions produced can be used to produce interference between different atomic species with high numbers of atoms or to fine control the difference in atoms between the two species. Finally, we show that errors in the standard Berry phase due to elastic collisions may be corrected by controlling inelastic collisions between atoms.

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Language(s): eng - English
 Dates: 2002-08
 Publication Status: Issued
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 Table of Contents: -
 Rev. Type: Peer
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Title: Physical Review A
  Alternative Title : Phys. Rev. A
Source Genre: Journal
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Pages: - Volume / Issue: 66 (2) Sequence Number: 022102 Start / End Page: - 022102 Identifier: ISSN: 1050-2947