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arXiv 1209.0787physics.opticsmath-phmath.MPnlin.SIquant-ph
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非线性PT对称周期势中的布拉格孤子

Bragg solitons in nonlinear PT-symmetric periodic potentials

Mohammad-Ali Miri, Alejandro B. Aceves, Tsampikos Kottos, Vassilios Kovanis, Demetrios N. Christodoulides

摘要:

结果表明,在非线性复宇称时间(PT)对称周期结构中,慢布拉格孤子解是可能的。分析表明,周期性光学折射率的PT对称分量可以改变光栅的能带结构,从而改变前向波和后向波之间的有效耦合。从一个经典的修正的质量Thirring模型出发,得到了封闭形式的孤立波解.这些慢孤立波的基本性质和它们各自的PT对称增益/损耗分布的依赖性,然后通过数值模拟探索。

英文摘要:

It is shown that slow Bragg soliton solutions are possible in nonlinear complex parity-time (PT) symmetric periodic structures. Analysis indicates that the PT-symmetric component of the periodic optical refractive index can modify the grating band structure and hence the effective coupling between the forward and backward waves. Starting from a classical modified massive Thirring model, solitary wave solutions are obtained in closed form. The basic properties of these slow solitary waves and their dependence on their respective PT-symmetric gain/loss profile are then explored via numerical simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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