Multipeaked Solitons in Parity-Time Complex Superlattice with Dual Periods

The existence and stability of multipeaked solitons are investigated in a parity-time symmetric superlattice with dual periods under both self-focusing and self-defocusing nonlinearity. For self-defocusing nonlinearity, dipole solitons with low power and all the odd-peak solitons can exist stably in...

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Bibliographic Details
Published inChinese physics letters Vol. 32; no. 7; pp. 63 - 66
Main Author 王红成 凌东雄 何影记
Format Journal Article
LanguageEnglish
Published 01.07.2015
Subjects
Dipoles
Nonlinearity
Solitons
Stability
Superlattices
Symmetry
不稳定
双周期
孤子
时间
校验
自散焦
自聚焦
超晶格
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/7/074203

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Summary:The existence and stability of multipeaked solitons are investigated in a parity-time symmetric superlattice with dual periods under both self-focusing and self-defocusing nonlinearity. For self-defocusing nonlinearity, dipole solitons with low power and all the odd-peak solitons can exist stably in the first gap, while dipole solitons with high power and even-peak （except two） solitons are unstable. For self-focusing nonlinearity, even-peak out-of-phase solitons can propagate stably in the infinite gap, while odd-peak in-phase solitons are unstable.
Bibliography:WANG Hong-Cheng, LING Dong-Xiong, HE Ying-Ji（ 1 College of Electronic Engineering, Dongguan University of Technology, Dongguan 523808 2School of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665）
11-1959/O4
The existence and stability of multipeaked solitons are investigated in a parity-time symmetric superlattice with dual periods under both self-focusing and self-defocusing nonlinearity. For self-defocusing nonlinearity, dipole solitons with low power and all the odd-peak solitons can exist stably in the first gap, while dipole solitons with high power and even-peak （except two） solitons are unstable. For self-focusing nonlinearity, even-peak out-of-phase solitons can propagate stably in the infinite gap, while odd-peak in-phase solitons are unstable.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/7/074203