Journal
JOURNAL OF MODERN OPTICS
Volume 61, Issue 18, Pages 1465-1469Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500340.2014.941429
Keywords
dark soliton; nonlocal nonlinearities; local quintic nonlinearity; variational principle; competing nonlocality
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Funding
- Scientific Research Fund of Hubei Provincial Education Department [B2013193]
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Dark solitons, in a medium with competing nonlocal nonlinearities and local quintic nonlinearity, have been studied analytically in this paper. The phenomenological rectangular profile model for nonlocal response function is considered. The exact conditions for the existence of analytical dark soliton solutions are presented using variational principle. The influence of strengths and degrees of competing nonlocality as well as the strength of quintic locality, on the properties of dark solitons, are discussed.
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