期刊
PHYSICAL REVIEW A
卷 86, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.033801
关键词
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资金
- AFOSR [FA 9550-10-1-0561, FA 9550-10-1-0433]
- AFORS [FA 9550-12-1-0148]
- NSF [ECCS-1128571]
- AFOSR LRIR [09RY04COR]
- OSD Metamaterials Insert
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1128520, 1128593] Funding Source: National Science Foundation
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [0959856] Funding Source: National Science Foundation
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.
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