Formation, stability, and adiabatic excitation of peakons and double-hump solitons in parity-time-symmetric Dirac--Scarf-II optical potentials

M Zhong, Y Chen, Z Yan, SF Tian - Physical Review E, 2022 - APS
We introduce a class of physically intriguing PT-symmetric Dirac-δ-Scarf-II optical potentials.
We find the parameter region making the corresponding non-Hermitian Hamiltonian admit …

Stable dynamics and excitations of single-and double-hump solitons in the Kerr nonlinear media with PT-symmetric HHG potentials

X Li, L Wang, Z Zhou, Y Chen, Z Yan - Nonlinear Dynamics, 2022 - Springer
In this paper, the self-focusing nonlinear Schrödinger (NLS) equation with PT-symmetric
harmonic-hyperbolic-Gaussian function potentials is investigated, and some intriguing …

Stability analysis of multiple solutions of nonlinear Schrödinger equation with -symmetric potential

N Ghosh, A Das, D Nath - Nonlinear Dynamics, 2023 - Springer
Exact stationary solutions of nonlinear Schrödinger equation in the presence of complex
deformed supersymmetric potential have been obtained in terms of bright soliton and dark …

[HTML][HTML] Soliton formation and dynamics in the quintic nonlinear media with PT-invariant harmonic-Gaussian potential

X Li, L Wang, Z Yan - Physics Letters A, 2023 - Elsevier
In this paper, we introduce a PT-symmetric harmonic-hyperbolic-Gaussian (HHG) potential
in the nonlinear Schrödinger (NLS) equation with quintic nonlinearity. Firstly, we present the …

Nonlinear Schrödinger equations with amplitude-dependent Wadati potentials

DA Zezyulin - Physical Review E, 2022 - APS
Complex Wadati-type potentials of the form V (x)=− w 2 (x)+ iwx (x), where w (x) is a real-
valued function, are known to possess a number of intriguing features, unusual for generic …

Soliton solutions of derivative nonlinear Schrödinger equations: Conservative schemes and numerical simulation

L Xue, Q Zhang - Physica D: Nonlinear Phenomena, 2024 - Elsevier
In this paper, we numerically study soliton solutions of derivative nonlinear Schrödinger
equations based on several conservative finite difference methods. All schemes own second …

Optical chirped soliton structures in generalized derivative resonant nonlinear Schrödinger equation and modulational stability analysis

A Das, S Jash, S Paul, YA Mondal, A Das - Optik, 2021 - Elsevier
The derivative resonant nonlinear Schrödinger (DRNS) equation describing pulse
propagation in nonlinear optics is studied and exact chirped soliton solutions are obtained in …

Stability analysis of multiple solutions of three wave interaction with group velocity dispersion and wave number mismatch

N Ghosh, A Das, D Nath - arXiv preprint arXiv:2403.08025, 2024 - arxiv.org
This paper explores the analytical approach for obtaining the multiple solutions of three-
wave interacting system in (1+ 1) dimensions. We present a novel approach by expressing …

Connected and disconnected stable regions of solitons of nonlinear Schr\"odinger equation with -symmetric potential

N Ghosh, A Das, D Nath - arXiv preprint arXiv:2107.07812, 2021 - arxiv.org
We have considered cubic nonlinear Schr\" odinger equation along with supersymmetric
$\mathcal {PT} $ like potential and obtained exact stationary solutions in terms of bright and …