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pro vyhledávání: '"Nixon, Sean"'
A unified method to analyze the dynamics and topological structure associated with a class of Floquet topological insulators is presented. The method is applied to a system that describes the propagation of electromagnetic waves through the bulk of a
Externí odkaz:
http://arxiv.org/abs/2206.05832
Publikováno v:
Journal of Cultural Economy; Oct2024, Vol. 17 Issue 5, p684-693, 10p
Autor:
Yang, Jianke, Nixon, Sean
Stability of soliton families in one-dimensional nonlinear Schroedinger equations with non-parity-time (PT)-symmetric complex potentials is investigated numerically. It is shown that these solitons can be linearly stable in a wide range of parameter
Externí odkaz:
http://arxiv.org/abs/1605.02259
Autor:
Nixon, Sean, Yang, Jianke
Many classes of non-parity-time (PT) symmetric waveguides with arbitrary gain and loss distributions still possess all-real linear spectrum or exhibit phase transition. In this article, nonlinear light behaviors in these complex waveguides are probed
Externí odkaz:
http://arxiv.org/abs/1604.02025
Autor:
Nixon, Sean, Yang, Jianke
A method for constructing optical potentials with an arbitrary distribution of gain and loss and completely real spectrum is presented. For each arbitrary distribution of gain and loss, several classes of refractive-index profiles with freely tunable
Externí odkaz:
http://arxiv.org/abs/1512.07270
Autor:
Nixon, Sean, Yang, Jianke
Continuous families of solitons in generalized nonlinear Sch\"odinger equations with non-PT-symmetric complex potentials are studied analytically. Under a weak assumption, it is shown that stationary equations for solitons admit a constant of motion
Externí odkaz:
http://arxiv.org/abs/1509.07057
Autor:
Nixon, Sean, Yang, Jianke
Nonlinear wave propagation in parity-time ($\mathcal{PT}$) symmetric localized potentials is investigated analytically near a phase-transition point where a pair of real eigenvalues of the potential coalesce and bifurcate into the complex plane. Nece
Externí odkaz:
http://arxiv.org/abs/1506.04445