Quantum turbulence and correlations in Bose-Einstein condensate collisions

Details Quantum turbulence and correlations in Bose-Einstein condensate collisions Quantum turbulence and correlations in Bose-Einstein condensate collisions

2006-02-02

arxiv.org/abs/cond-mat/0602061v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.73.043617

We investigate numerically simulated collisions between experimentally realistic Bose-Einstein condensate wavepackets, within a regime where highly populated scattering haloes are formed. The theoretical basis for this work is the truncated Wigner method, for which we present a detailed derivation, paying particular attention to its validity regime for colliding condensates. This paper is an extension of our previous Letter [A. A. Norrie, R. J. Ballagh, and C. W. Gardiner, Phys. Rev. Lett. 94, 040401 (2005)] and we investigate both single-trajectory solutions, which reveal the presence of quantum turbulence in the scattering halo, and ensembles of trajectories, which we use to calculate quantum-mechanical correlation functions of the field.

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