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Observation of a modulational instability in Bose-Einstein condensates

Everitt, Patrick; Sooriyabandara, Mahasen; Guasoni, Massimiliano; Wigley, Paul; Wei, Chunhua; McDonald, Gordon; Hardman, Kyle; Perumbil, Manju; Close, John; Noschang Kuhn, Carlos Claiton; Szigeti, Stuart; Kivshar, Yuri; Robins, Nicholas


We observe the breakup dynamics of an elongated cloud of condensed 85Rb atoms placed in an optical waveguide. The number of localized spatial components observed in the breakup is compared with the number of solitons predicted by a plane-wave stability analysis of the nonpolynomial nonlinear Schrödinger equation, an effective one-dimensional approximation of the Gross-Pitaevskii equation for cigar-shaped condensates. It is shown that the numbers predicted from the fastest growing sidebands are...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.96.041601
Access Rights: Open Access


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