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Statistical properties of the continuum Salerno model

Marklund, M. and Shukla, P. K. and Bingham, R. and Mendonca, J. T. (2006) Statistical properties of the continuum Salerno model. Physical Review A, 74 (4). 045801. ISSN 1094-1622

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The statistical properties of the Salerno model are investigated. In particular, a comparison between the coherent and partially coherent wave modes is made for the case of a random-phased wave packet. It is found that the random-phased-induced spectral broadening gives rise to the damping of instabilities, but also a broadening of the instability region in quasiparticle momentum space. The results can be of significance for the condensation of magnetic-moment bosons in deep optical lattices.