Exotic vector freak waves in the nonlocal nonlinear Schrödinger equation

XB Wang, SF Tian - Physica D: Nonlinear Phenomena, 2022 - Elsevier
In this paper, general higher-order freak wave solutions of the nonlocal nonlinear
Schrödinger equation (NLSE) with parity-time symmetric can be calculated theoretically via …

Rational and semirational solutions of the nonlocal Davey–Stewartson equations

J Rao, Y Cheng, J He - Studies in Applied Mathematics, 2017 - Wiley Online Library
In this paper, the partially party‐time () symmetric nonlocal Davey–Stewartson (DS)
equations with respect to x is called x‐nonlocal DS equations, while a fully symmetric …

Dynamics of dark and anti-dark solitons for the x-nonlocal Davey–Stewartson II equation

CC Ding, Q Zhou, H Triki, Y Sun, A Biswas - Nonlinear Dynamics, 2023 - Springer
We investigate the x-nonlocal Davey–Stewartson II equation based on Kadomtsev–
Petviashvili hierarchy reduction method, and then report dark solitons and (semi-) rational …

Tensor neural network and its numerical integration

Y Wang, P **, H **e - arxiv preprint arxiv:2207.02754, 2022 - arxiv.org
In this paper, we introduce a type of tensor neural network. For the first time, we propose its
numerical integration scheme and prove the computational complexity to be the polynomial …

Exotic localized waves in the shifted nonlocal multicomponent nonlinear Schrödinger equation

XB Wang, SF Tian - Theoretical and Mathematical Physics, 2022 - Springer
We theoretically calculate general higher-order soliton solutions of the space-shifted parity–
time-symmetric nonlocal multicomponent nonlinear Schrödinger equation via a Darboux …

Two (2+ 1)-dimensional integrable nonlocal nonlinear Schrödinger equations: breather, rational and semi-rational solutions

Y Cao, BA Malomed, J He - Chaos, Solitons & Fractals, 2018 - Elsevier
Recently, an integrable system of coupled (2+ 1)-dimensional nonlinear Schrödinger (NLS)
equations was introduced by Fokas (Eq.(18) in Nonlinearity 29, 319324 (2016)). Following …

Dynamics of rogue waves in the partially PT-symmetric nonlocal Davey–Stewartson systems

B Yang, Y Chen - Communications in Nonlinear Science and Numerical …, 2019 - Elsevier
In this work, we study the dynamics of rogue waves in the partially PT-symmetric nonlocal
Davey–Stewartson (DS) systems. Using the Darboux transformation method, general rogue …

Computing multi-eigenpairs of high-dimensional eigenvalue problems using tensor neural networks

Y Wang, H **e - Journal of Computational Physics, 2024 - Elsevier
In this paper, we propose a type of tensor-neural-network-based machine learning method
to compute multi-eigenpairs of high dimensional eigenvalue problems without Monte-Carlo …

Swanson Hamiltonian: non-PT-symmetry phase

V Fernández, R Ramírez… - Journal of Physics A …, 2021 - iopscience.iop.org
In this work, we study the non-Hermitian Swanson Hamiltonian, particularly the non-parity-
time symmetry phase. We use the formalism of Gel'fand triplet to construct the generalized …

Generalized Gauge Transformation with PT PT‐Symmetric Non‐Unitary Operator and Classical Correspondence of Non‐Hermitian Hamiltonian for a Periodically …

Y Gu, XL Hao, JQ Liang - Annalen der Physik, 2022 - Wiley Online Library
This paper demonstrates that the parity‐time (PT PT)‐symmetric non‐Hermitian Hamiltonian
for a periodically driven system can be generated from a kernel Hamiltonian by a …