Solitons supported by complex PT-symmetric Gaussian potentials
Solitons supported by complex PT-symmetric Gaussian potentials
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DOI：
10.1103/physreva.84.043818
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发表时间：
2011-10
影响因子：
2.9
通讯作者：
Xue-Kai Ma;Daquan Lu;Zhenjun Yang;Yizhou Zheng;Hu Wei
中科院分区：
文献类型：
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作者：
Xue-Kai Ma;Daquan Lu;Zhenjun Yang;Yizhou Zheng;Hu Wei
报道了具有奇偶时间对称高斯复势的克尔非线性介质中基本孤子、偶极孤子和三极孤子的存在性和稳定性。基本孤子不仅在深势中稳定，而且在浅势中也稳定。偶极子和三极子孤子仅在深势下稳定，而三极子孤子在深势下比偶极子孤子稳定。随着电位深度的增加，孤子的稳定区域也随之增加。孤子的功率随传播常数的增大或调制深度的减小而增大。
The existence and stability of fundamental, dipole, and tripole solitons in Kerr nonlinear media with parity-time-symmetric Gaussian complex potentials are reported. Fundamental solitons are stable not only in deep potentials but also in shallow potentials. Dipole and tripole solitons are stable only in deep potentials, and tripole solitons are stable in deeper potentials than for dipole solitons. The stable regions of solitons increase with increasing potential depth. The power of solitons increases with increasing propagation constant or decreasing modulation depth of the potentials.