36 citations · 56 across the 2 of their papers we have counts for
5 papers
-symmetric coupler with nonlinearity
K. Li, D. A. Zezyulin, P. G. Kevrekidis +2
We introduce the notion of a -symmetric dimer with a nonlinearity. Similarly to the Kerr case, we argue that such a nonlinearity should be accessible in a pair…
Revisiting the PT-symmetric Trimer: Bifurcations, Ghost States and Associated Dynamics
K. Li, P. G. Kevrekidis, D. J. Frantzeskakis +2
In this paper, we revisit one of the prototypical PT-symmetric oligomers, namely the trimer. We find all the relevant branches of "regular" solutions and analyze the bifurcations a…
Parity-time symmetric optical coupler with birefringent arms
K. Li, D. A. Zezyulin, V. V. Konotop +1
In this work, we propose a PT-symmetric coupler whose arms are birefringent waveguides as a realistic physical model which leads to a so-called quadrimer i.e., a four complex field…
Linear and Nonlinear PT-symmetric Oligomers: A Dynamical Systems Analysis
M. Duanmu, K. Li, R. L. Horne +2
In the present work we focus on the cases of two-site (dimer) and three-site (trimer) configurations, i.e. oligomers, respecting the parity-time (PT) symmetry, i.e., with a spatial…
PT-Symmetric Oligomers: Analytical Solutions, Linear Stability and Nonlinear Dynamics
K. Li, P. G. Kevrekidis
In the present work we focus on the case of (few-site) configurations respecting the PT-symmetry. We examine the case of such "oligomers" with not only 2-sites, as in earlier works…