General soliton solution to a nonlocal nonlinear Schrödinger equation with zero and nonzero boundary conditions

General soliton solutions to a nonlocal nonlinear Schrödinger (NLS) equation with PT-symmetry for both zero and nonzero boundary conditions are considered via the combination of Hirota's bilinear method and the Kadomtsev-Petviashvili (KP) hierarchy reduction method. First, general N-soliton sol...

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Bibliographic Details
Published in:Nonlinearity 2018-12, Vol.31 (12), p.5385-5409
Main Authors: Feng, Bao-Feng, Luo, Xu-Dan, Ablowitz, Mark J, Musslimani, Ziad H
Format: Article
Language:English
Subjects:
Hirota's bilinear method
nonlocal nonlinear Schrödiinger equation
soliton solutions with zero and nonzero boundary conditions
the KP hierarchy reduction method
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Summary:General soliton solutions to a nonlocal nonlinear Schrödinger (NLS) equation with PT-symmetry for both zero and nonzero boundary conditions are considered via the combination of Hirota's bilinear method and the Kadomtsev-Petviashvili (KP) hierarchy reduction method. First, general N-soliton solutions with zero boundary conditions are constructed. Starting from the tau functions of the two-component KP hierarchy, it is shown that they can be expressed in terms of either Gramian or double Wronskian determinants. On the contrary, from the tau functions of single component KP hierarchy, general soliton solutions to the nonlocal NLS equation with nonzero boundary conditions are obtained. All possible soliton solutions to nonlocal NLS with Parity (PT)-symmetry for both zero and nonzero boundary conditions are found in the present paper.
ISSN:0951-7715
1361-6544
DOI:10.1088/1361-6544/aae031