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Symmetry 2018, 10(7), 277; https://doi.org/10.3390/sym10070277

Zigzag Solitons and Spontaneous Symmetry Breaking in Discrete Rabi Lattices with Long-Range Hopping

1
Department of Applied Physics, South China Agricultural University, Guangzhou 510642, China
2
Center of Experimental Teaching for Common Basic Courses, South China Agriculture University, Guangzhou 510642, China
*
Authors to whom correspondence should be addressed.
Received: 31 May 2018 / Revised: 3 July 2018 / Accepted: 9 July 2018 / Published: 12 July 2018
(This article belongs to the Special Issue Optical Waveguides in Photonic Crystals)
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Abstract

A new type of discrete soliton, which we call zigzag solitons, is founded in two-component discrete Rabi lattices with long-range hopping. The spontaneous symmetry breaking (SSB) of zigzag solitons is also studied. Through numerical simulation, we found that by enhancing the intensity of the long-range linearly-coupled effect or increasing the total input power, the SSB process from the symmetric soliton to the asymmetric soliton will switch from the supercritical to subcritical type. These results can help us better understand both the discrete solitons and the Rabi coupled effect. View Full-Text
Keywords: spontaneous symmetry breaking; discrete solitons; Rabi lattices; waveguide arrays spontaneous symmetry breaking; discrete solitons; Rabi lattices; waveguide arrays
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Xu, H.; Pan, Z.; Luo, Z.; Liu, Y.; Tan, S.; Mai, Z.; Xu, J. Zigzag Solitons and Spontaneous Symmetry Breaking in Discrete Rabi Lattices with Long-Range Hopping. Symmetry 2018, 10, 277.

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