Nonlinear modes in rotating double well potential with parity—time symmetry
Nonlinear modes in rotating double well potential with parity—time symmetry
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DOI：
10.1088/1674-1056/23/10/104214
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发表时间：
2014-08
影响因子：
1.7
通讯作者：
W. Pang;Shenhe Fu;Jianxiong Wu;Yongyao Li;Zhijie Mai
中科院分区：
文献类型：
--
作者：
W. Pang;Shenhe Fu;Jianxiong Wu;Yongyao Li;Zhijie Mai
研究了具有对称性的旋转双势阱中的非线性模。重点研究了该系统中非线性PT模式的存在性和稳定性，发现在给定一定的参数设置下，五种PT模式都可以稳定存在。数值研究了这些模式之间的多稳区，并划定了双稳区和三稳区。在不同的输入试探波函数下，识别出了五种类型的孤立波模式。我们发现势的旋转对基波模的功率流有显著的影响，而对其它模的功率流影响不大。
We investigate the nonlinear modes in a rotating double well potential with 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.