Abstract
To simulate dark solitons in the defocusing nonlinear Schrödinger equation, we introduce a relay-zone technique, by alternately using a Robin boundary condition to treat the nonzero far field, and a derivative boundary condition to match the dark soliton. Numerical tests and comparisons demonstrate the effectiveness of the proposed boundary treatment. Stability and interaction of dark solitons are also studied.
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The research is partially supported by NSFC under Contract no. 11521202 and China Postdoctoral Science Foundation Funded Project no. 2016M600902.
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Bian, L., Tang, S. Relay-Zone Technique for Numerical Boundary Treatments in Simulating Dark Solitons. Multiscale Sci. Eng. 1, 210–219 (2019). https://doi.org/10.1007/s42493-018-00002-0
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DOI: https://doi.org/10.1007/s42493-018-00002-0