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Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
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A Raman waveplate for spinor Bose-Einstein condensates.

Justin T Schultz, Azure Hansen, Nicholas P Bigelow

    Optics Letters
    |August 15, 2014
    PubMed
    Summary
    This summary is machine-generated.

    We developed a novel waveplate for Bose-Einstein condensates (BECs) using Raman interactions. This tool images BECs and measures their ground-state phase, demonstrated on a coreless vortex.

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    Area of Science:

    • Atomic, Molecular, and Optical Physics
    • Quantum Gases
    • Condensed Matter Physics

    Background:

    • Bose-Einstein condensates (BECs) are quantum states of matter with unique properties.
    • Measuring the relative ground-state phase of BECs is crucial for understanding their behavior.
    • Existing methods for phase measurement can be complex or limited in scope.

    Purpose of the Study:

    • To demonstrate a novel waveplate for pseudo-spin-1/2 Bose-Einstein condensates (BECs).
    • To enable imaging of BEC Stokes parameters for phase measurement.
    • To validate the waveplate's performance by measuring the phase of a coreless vortex.

    Main Methods:

    • Utilized a two-photon Raman interaction to create the waveplate.
    • Controlled waveplate angle via optical field relative phase.
    • Controlled retardance using pulse area.
    • Applied the waveplate to image Stokes parameters of a BEC.

    Main Results:

    • Successfully demonstrated a functional waveplate for pseudo-spin-1/2 BECs.
    • Enabled imaging of BEC Stokes parameters.
    • Measured the relative ground-state phase of a coreless vortex BEC.

    Conclusions:

    • The developed waveplate is a valuable tool for probing BEC quantum states.
    • This technique allows for precise measurement of relative ground-state phase.
    • The waveplate opens new avenues for studying vortex states and phase dynamics in BECs.