期刊
PHYSICAL REVIEW A
卷 94, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.021801
关键词
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资金
- Transformative Science Program of the Binational U.S.-Israel Science Foundation (BSF)
- Israeli-German DIP Program
- Israeli ICore Excellence Center Circle of Light
- National Science Foundation [ECCS-1509546]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1509546] Funding Source: National Science Foundation
We analyze the stability of extended edge modes in a nonlinear (i.e., interacting) bosonic topological insulator. We see that these nonlinear modes are always unstable, despite the topological protection of edge modes in the linear system. For concreteness we use a photonic platform, but the results generalize to other bosonic systems. We give a detailed description of the system in two extreme cases, low nonlinearity and high nonlinearity, and discuss the breakup of the nonlinear edge states into solitons.
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