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| ID:
27724.0,
MPI für Quantenoptik / Laser Physics |
| Geometric phases of mesoscopic spin in Bose-Einstein condensates |
| Authors: | Fuentes-Guridi, I.; Pachos, J.; Bose, S.; Vedral, V.; Choi, S. | | Language: | English | | Date of Publication (YYYY-MM-DD): | 2002-08 | | Title of Journal: | Physical Review A | | Journal Abbrev.: | Phys. Rev. A | | Volume: | 66 | | Issue / Number: | 2 | | End Page: | 022102 | | Sequence Number of Article: | 022102 | | Review Status: | Peer-review | | Audience: | Experts Only | | Abstract / Description: | 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. | | External Publication Status: | published | | Document Type: | Article |
| Communicated by: | Herbert Walther | | Affiliations: | MPI für Quantenoptik/Laser Physics
| | External Affiliations: | Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Opt; Sect, London SW7 2BZ, England; Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England; Univ Rochester, Dept Chem, Rochester, NY 14627 USA
| | Identifiers: | ISI:000177872600010
ISSN:1050-2947
URL:http://link.aps.org/abstract/PRA/v66/e022102 | |
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