Quantum turbulence in condensate collisions: an application of the classical field method

Details Quantum turbulence in condensate collisions: an application of the classical field method Quantum turbulence in condensate collisions: an application of the classical field method

2004-03-16

arxiv.org/abs/cond-mat/0403378v2

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures: Rewritten text, replaced figures

Scientific paper

10.1103/PhysRevLett.94.040401

We apply the classical field method to simulate the production of correlated atoms during the collision of two Bose-Einstein condensates. Our non-perturbative method includes the effect of quantum noise, and provides for the first time a theoretical description of collisions of high density condensates with very large out-scattered fractions. Quantum correlation functions for the scattered atoms are calculated from a single simulation, and show that the correlation between pairs of atoms of opposite momentum is rather small. We also predict the existence of quantum turbulence in the field of the scattered atoms--a property which should be straightforwardly measurable.

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