Browsing by Subject "Atomic coherence"

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    Photonic band gap in the triangular lattice of Bose-Einstein-condensate vortices
    (2007) Taşgin, M. E.; Müstecaplioǧlu Ö. E.; Oktel, M. Ö.
    We investigate the photonic bands of an atomic Bose-Einstein condensate with a triangular vortex lattice. Index contrast between the vortex cores and the bulk of the condensate is achieved through the enhancement of the index via atomic coherence. The frequency-dependent dielectric function is used in the calculations of the bands, resulting in photonic band gap widths of a few megahertz. © 2007 The American Physical Society.