Nonlinear modes in rotating double well potential with parity-time symmetry

We investigate the nonlinear modes in a rotating double well potential with 79T symmetry. Focus on the existence and stability of the nonlinear PT modes in this system, we found that five types of PT modes can stably exist by given certain parameter settings. The multistable area between these modes...

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Bibliographic Details
Published in:Chinese physics B 2014-10, Vol.23 (10), p.192-199
Main Author: 庞玮 付神贺 吴剑雄 黎永耀 麦志杰
Format: Article
Language:English
Subjects:
Harmonics
Mathematical models
Nonlinearity
Power flow
Rotating
Solitary waves
Stability
Symmetry
Wavefunctions
参数设置
双势阱
奇偶
对称性
数值研究
旋转
时间
非线性模式
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Summary:We investigate the nonlinear modes in a rotating double well potential with 79T symmetry. Focus on the existence and stability of the nonlinear PT modes in this system, we found that five types of PT modes can stably exist by given certain parameter settings. The multistable area between these modes are studied numerically and the bistable and tristable areas are delimited. With different input trial wavefunctions, five types of solitary wave modes are identified. We found that the rotating of the potential can significantly affect the power flow of the fundamental harmonic mode, whose effect is absent for the other modes.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/10/104214