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Feshbach-resonance-induced atomic filamentation and quantum pair correlation in atom-laser-beam propagation

Weiping Zhang·Chris P. Search·Han Pu·Pierre Meystre·Ewan M. Wright
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Abstract

We study the propagation of an atom laser beam through a spatial region with a magnetic field tuned to a Feshbach resonance. Tuning the magnetic field below the resonance produces an effective focusing Kerr medium that causes a modulational instability of the atomic beam. Under appropriate circumstances, this results in beam breakup and filamentation seeded by quasi-particle fluctuations, and in the generation of correlated atomic pairs.

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Weiping Zhang, Chris P. Search, Han Pu, Pierre Meystre, Ewan M. Wright. 2002-08-30. Feshbach-resonance-induced atomic filamentation and quantum pair correlation in atom-laser-beam propagation. https://doi.org/10.1103/physrevlett.90.140401

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