Holographic power-law traps for the efficient production of Bose-Einstein condensates

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Bruce, Graham D. and Bromley, Sarah L. and Smirne, Giuseppe and Torralbo-Campo, Lara and Cassettari, Donatella (2011) Holographic power-law traps for the efficient production of Bose-Einstein condensates. Physical Review A, 84 (5). -. 053410. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.84.053410)

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Abstract

We use a phase-only spatial light modulator to generate light distributions in which the intensity decays as a power law from a central maximum with order ranging from 2 (parabolic) to 0.5. We suggest that a sequence of these can be used as a time-dependent optical dipole trap for all-optical production of Bose-Einstein condensates (BECs) in two stages: efficient evaporative cooling in a trap with adjustable strength and depth, followed by an adiabatic transformation of the trap order to cross the BEC transition in a reversible way. Realistic experimental parameters are used to verify the capability of this approach in producing larger BECs than by evaporative cooling alone.

  • Item type:Article
    ID code:37160
    Dates:
    Date
    Event
    14 November 2011
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:30 Jan 2012 09:51
    Last modified:11 Nov 2024 10:03
    URI:https://strathprints.strath.ac.uk/id/eprint/37160
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