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Title: Stability and response of trapped solitary wave solutions of coupled nonlinear Schrödinger equations in an external, $$\mathcal{PT}$$- and supersymmetric potential

Abstract

In this work, we present trapped solitary wave solutions of a coupled nonlinear Schrödinger (NLS) system in 1 + 1 dimensions in the presence of an external, supersymmetric and complex $$\mathcal{PT}$$-symmetric potential. The Schrödinger system this work focuses on possesses exact solutions whose existence, stability, and spatio-temporal dynamics are investigated by means of analytical and numerical methods. Two different variational approximations are considered where the stability and dynamics of the solitary waves are explored in terms of eight and twelve time-dependent collective coordinates (CCs). We find regions of stability for specific potential choices as well as analytic expressions for the small oscillation frequencies in the CC approximation. Our findings are further supported by performing systematic numerical simulations of the NLS system.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4]; ORCiD logo [5]
  1. California Polytechnic State Univ., San Luis Obispo, CA (United States)
  2. Univ. of New Hampshire, Durham, NH (United States)
  3. The Santa Fe Inst., NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Nonlinear Studies (CNLS)
  4. Savitribai Phule Pune Univ., Pune (India)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Nonlinear Studies (CNLS)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1840878
Report Number(s):
LA-UR-20-22820
Journal ID: ISSN 1751-8113
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physics. A, Mathematical and Theoretical
Additional Journal Information:
Journal Volume: 53; Journal Issue: 45; Journal ID: ISSN 1751-8113
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Charalampidis, Efstathios G., Dawson, John F., Cooper, Fred, Khare, Avinash, and Saxena, Avadh. Stability and response of trapped solitary wave solutions of coupled nonlinear Schrödinger equations in an external, $\mathcal{PT}$- and supersymmetric potential. United States: N. p., 2020. Web. doi:10.1088/1751-8121/abb278.
Charalampidis, Efstathios G., Dawson, John F., Cooper, Fred, Khare, Avinash, & Saxena, Avadh. Stability and response of trapped solitary wave solutions of coupled nonlinear Schrödinger equations in an external, $\mathcal{PT}$- and supersymmetric potential. United States. https://doi.org/10.1088/1751-8121/abb278
Charalampidis, Efstathios G., Dawson, John F., Cooper, Fred, Khare, Avinash, and Saxena, Avadh. Wed . "Stability and response of trapped solitary wave solutions of coupled nonlinear Schrödinger equations in an external, $\mathcal{PT}$- and supersymmetric potential". United States. https://doi.org/10.1088/1751-8121/abb278. https://www.osti.gov/servlets/purl/1840878.
@article{osti_1840878,
title = {Stability and response of trapped solitary wave solutions of coupled nonlinear Schrödinger equations in an external, $\mathcal{PT}$- and supersymmetric potential},
author = {Charalampidis, Efstathios G. and Dawson, John F. and Cooper, Fred and Khare, Avinash and Saxena, Avadh},
abstractNote = {In this work, we present trapped solitary wave solutions of a coupled nonlinear Schrödinger (NLS) system in 1 + 1 dimensions in the presence of an external, supersymmetric and complex $\mathcal{PT}$-symmetric potential. The Schrödinger system this work focuses on possesses exact solutions whose existence, stability, and spatio-temporal dynamics are investigated by means of analytical and numerical methods. Two different variational approximations are considered where the stability and dynamics of the solitary waves are explored in terms of eight and twelve time-dependent collective coordinates (CCs). We find regions of stability for specific potential choices as well as analytic expressions for the small oscillation frequencies in the CC approximation. Our findings are further supported by performing systematic numerical simulations of the NLS system.},
doi = {10.1088/1751-8121/abb278},
journal = {Journal of Physics. A, Mathematical and Theoretical},
number = 45,
volume = 53,
place = {United States},
year = {Wed Oct 28 00:00:00 EDT 2020},
month = {Wed Oct 28 00:00:00 EDT 2020}
}

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