Bragg spectroscopy of an accelerating condensate with solitary-wave behaviour
arXiv:cond-mat/0410168 · doi:10.1103/PhysRevA.71.033620
Abstract
We present a theoretical treatment of Bragg spectroscopy of an accelerating condensate in a solitary-wave state. Our treatment is based on the Gross-Pitaevskii equation with an optical potential representing the Bragg pulse and an additional external time-dependent potential generating the solitary-wave behaviour. By transforming to a frame translating with the condensate, we derive an approximate set of equations that can be readily solved to generate approximate Bragg spectra. Our analytic method is accurate within a well defined parameter regime and provides physical insight into the structure of the spectra. We illustrate our formalism using the example of Bragg spectroscopy of a condensate in a time-averaged orbiting potential trap.
arXiv comment9 pages, 3 figures
References in corpus (12)
- Bragg spectroscopy of a Bose-Einstein condensate
- Momentum spectroscopy of 1D phase fluctuations in Bose-Einstein condensates
- Experimental properties of Bose-Einstein condensates in 1D optical lattices: Bloch oscillations, Landau-Zener tunneling and mean-field effects
- Solitary waves in clouds of Bose-Einstein condensed atoms
- Theory of coherent Bragg spectroscopy of a trapped Bose-Einstein condensate
- Dynamics of bright matter wave solitons in a quasi 1D Bose-Einstein condensate with a rapidly varying trap
- Spectroscopy of Superfluid Pairing in Atomic Fermi Gases
- Dimensional Reduction in Bose-Condensed Alkali-Metal Vapors
- Meanfield treatment of Bragg scattering from a Bose-Einstein condensate
- Spatially selective Bragg scattering: a signature for vortices in Bose-Einstein condensates
- Bragg spectroscopy with an accelerating Bose-Einstein condensate
- Solitary-wave description of condensate micro-motion in a time-averaged orbiting potential trap