3 papers
quant-ph2025
Perturbative nonlinear J-matrix method of scattering in two dimensions
T. J. Taiwo, A. D. Alhaidari, U. Al Khawaja
We introduce a perturbative formulation for a nonlinear extension of the J-matrix method of scattering in two dimensions. That is, we obtain the scattering matrix for the time-inde…
nlin.PS2025
Spontaneous symmetry and antisymmetry breaking in a ring with two potential barriers
Hidetsugu Sakaguchi, Boris A. Malomed, T. J. Taiwo
We propose a fundamental setup for the realization of spontaneous symmetry breaking (SSB) and spontaneous antisymmetry breaking (SASB) in the framework of the nonlinear Schroedinge…
math-ph2025
Real Spectra in PT Symmetry Hamiltonians using Tridiagonal Representation Approach
Tunde Joseph Taiwo
We consider the solution of PT symmetry Hamiltonians using the technique of tridiagonal representation approach. This methodology provides more accurate results and proper depictio…