Nonlinear Transport through Parity-Time Symmetric Lattice Potentials

被引：0

作者：

Mao, Wei ^{[1
]}

Zhang, Yongping ^{[1
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

来源：

SYMMETRY-BASEL | 2024年 / 16卷 / 06期

基金：

中国国家自然科学基金;

关键词：

parity-time symmetric lattices; nonlinear transport; nonlinear Bloch spectrum; DISCRETE SOLITONS; DYNAMICS;

D O I：

10.3390/sym16060640

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We study nonlinear transports of a light field through finite parity-time symmetric lattice potentials. The initial light field is trapped in a source reservoir and is released to expand toward the lattice potentials along the transverse direction due to the nonlinearity. We identify the transports that can be classified into in-band and in-gap transports. In the in-band transport, the light field can tunnel through the lattices into the sink reservoir, and in the in-gap transport, the light field is self-trapped inside the lattices to form a solitary wave.

引用

页数：12

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