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    Steady-state entanglement in a double-well Bose-Einstein condensate through coupling to a superconducting resonator

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    ChuShih-I_8-23-2011.pdf (545.2Kb)
    Issue Date
    2011-08-23
    Author
    Chu, Shih-I
    Ng, H. T.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    We consider a two-component Bose-Einstein condensate in a double-well potential, where the atoms are magnetically coupled to a single mode of the microwave field inside a superconducting resonator. We find that the system has different dark-state subspaces in the strong- and weak-tunneling regimes. In the limit of weak tunnel coupling, steady-state entanglement between the two spatially separated condensates can be generated by evolving to a mixture of dark states via the dissipation of the photon field. We show that the entanglement can be faithfully indicated by an entanglement witness. Long-lived entangled states are useful for quantum-information processing with atom-chip devices.
    Description
    This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevA.84.023629.
    URI
    http://hdl.handle.net/1808/16020
    DOI
    https://doi.org/10.1103/PhysRevA.84.023629
    Collections
    • Chemistry Scholarly Works [506]
    Citation
    Ng, H. T. & Chu, Shih-I. "Steady-state entanglement in a double-well Bose-Einstein condensate through coupling to a superconducting resonator." Phys. Rev. A 84, 023629 – Published 23 August 2011. http://dx.doi.org/10.1103/PhysRevA.84.023629.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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