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:
-
- California Polytechnic State Univ., San Luis Obispo, CA (United States)
- Univ. of New Hampshire, Durham, NH (United States)
- The Santa Fe Inst., NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Nonlinear Studies (CNLS)
- Savitribai Phule Pune Univ., Pune (India)
- 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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