Quantum multimode model of elastic scattering from Bose Einstein condensates
arXiv:cond-mat/0412622 · doi:10.1103/PhysRevLett.94.200401
Abstract
Mean field approximation treats only coherent aspects of the evolution of a Bose Einstein condensate. However, in many experiments some atoms scatter out of the condensate. We study an analytic model of two counter-propagating atomic Gaussian wavepackets incorporating dynamics of incoherent scattering processes. Within the model we can treat processes of elastic collision of atoms into the initially empty modes, and observe how, with growing occupation, the bosonic enhancement is slowly kicking in. A condition for bosonic enhancement effect is found in terms of relevant parameters. Scattered atoms form a squeezed state that can be viewed as a multi-component condensate. Not only are we able to calculate the dynamics of mode occupation, but also the full statistics of scattered atoms.
4 pages, 4 figures
References in corpus (10)
- Bragg spectroscopy of a Bose-Einstein condensate
- Suppression and enhancement of impurity scattering in a Bose-Einstein condensate
- Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates
- Quantum turbulence in condensate collisions: an application of the classical field method
- Theory of four-wave mixing of matter waves from a Bose-Einstein condensate
- Elastic scattering loss of atoms from colliding Bose-Einstein condensate wavepackets
- Quantum effects on dynamics of instabilities in Bose-Einstein condensates
- A Monte Carlo Formulation of the Bogolubov Theory
- Spontaneous emission of atoms via collisions of Bose-Einstein condensates
- Elastic scattering losses in the four-wave mixing of Bose Einstein Condensates
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