TY - JOUR
T1 - Unidirectional soliton flows in PT-symmetric potentials
AU - Al Khawaja, U.
AU - Al-Marzoug, S. M.
AU - Bahlouli, H.
AU - Kivshar, Yuri S.
PY - 2013/8/19
Y1 - 2013/8/19
N2 - We study the soliton scattering by parity-time- (PT) symmetric potentials and demonstrate that, for a certain range of parameters, both single and multiple soliton scattering exhibit almost perfect unidirectional flow. We employ direct numerical simulations of the corresponding nonlinear Schrödinger equation combined with the analysis of the effective equations derived by the collective-coordinate approach and reveal that the physical mechanism behind this effect of the unidirectional scattering is related to the energy exchange between the soliton center of mass and its internal mode.
AB - We study the soliton scattering by parity-time- (PT) symmetric potentials and demonstrate that, for a certain range of parameters, both single and multiple soliton scattering exhibit almost perfect unidirectional flow. We employ direct numerical simulations of the corresponding nonlinear Schrödinger equation combined with the analysis of the effective equations derived by the collective-coordinate approach and reveal that the physical mechanism behind this effect of the unidirectional scattering is related to the energy exchange between the soliton center of mass and its internal mode.
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U2 - 10.1103/PhysRevA.88.023830
DO - 10.1103/PhysRevA.88.023830
M3 - Article
AN - SCOPUS:84884841191
SN - 1050-2947
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023830
ER -