Non-equilibrium dynamics: Studies of reflection of Bose-Einstein condensates

Abstract

The study of the non-equilibrium dynamics in Bose-Einstein condensed gases has been dominated by the zero-temperature, mean field Gross-Pitaevskii formalism. Motivated by recent experiments on the reflection of condensates from silicon surfaces, we revisit the so-called {\em classical field} description of condensate dynamics, which incorporates the effects of quantum noise and can also be generalized to include thermal effects. The noise is included in a stochastic manner through the initial conditions. We show that the inclusion of such noise is important in the quantitative description of the recent reflection experiments.

References in corpus (9)

• Theory of Bose-Einstein condensation in trapped gases
• Dynamical quantum noise in Bose-Einstein condensates
• The truncated Wigner method for Bose condensed gases: limits of validity and applications
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• Anomalous quantum reflection of Bose-Einstein condensates from a silicon surface: the role of dynamical excitations
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Cited by in corpus (6)

• Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
• Resonant trapping in the transport of a matter-wave soliton through a quantum well
• Bogoliubov dynamics of condensate collisions using the positive-P representation
• Collective dynamics of excitons and polaritons in semiconductor nanostructures
• Elastic and inelastic transmission in guided atom lasers: a truncated Wigner approach
• Anisotropy in s-wave Bose-Einstein condensate collisions and its relationship to superradiance