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A dielectric superfluid of polar molecules Public Deposited

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https://scholar.colorado.edu/concern/articles/v118rf32w
Abstract
  • We show that, under achievable experimental conditions, a Bose-Einstein condensate (BEC) of polar molecules can exhibit dielectric character. In particular, we derive a set of self-consistent mean-field equations that couple the condensate density to its electric dipole field, leading to the emergence of polarization modes that are coupled to the rich quasiparticle spectrum of the condensate. While the usual roton instability is suppressed in this system, the coupling can give rise to a phonon-like instability that is characteristic of a dielectric material with a negative static dielectric function.

Creator
Date Issued
  • 2012-04-17
Academic Affiliation
Journal Title
Journal Issue/Number
  • 4
Journal Volume
  • 14
Last Modified
  • 2020-03-20
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DOI
Peer Reviewed
ISSN
  • 1367-2630
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