Topological magnetoplasmon.
Topological magnetoplasmon.
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拓扑磁等离子
DOI:
10.1038/ncomms13486
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发表时间:
2016-11-28
影响因子:
16.6
通讯作者:
Fang, Nicholas X.
中科院分区:
文献类型:
--
作者:
Jin, Dafei;Lu, Ling;Wang, Zhong;Fang, Chen;Joannopoulos, John D.;Soljacic, Marin;Fu, Liang;Fang, Nicholas X.
Classical wave fields are real-valued, ensuring the wave states at opposite frequencies and momenta to be inherently identical. Such a particle–hole symmetry can open up new possibilities for topological phenomena in classical systems. Here we show that the historically studied two-dimensional (2D) magnetoplasmon, which bears gapped bulk states and gapless one-way edge states near-zero frequency, is topologically analogous to the 2D topological p+ip superconductor with chiral Majorana edge states and zero modes. We further predict a new type of one-way edge magnetoplasmon at the interface of opposite magnetic domains, and demonstrate the existence of zero-frequency modes bounded at the peripheries of a hollow disk. These findings can be readily verified in experiment, and can greatly enrich the topological phases in bosonic and classical systems. The two dimensional magnetoplasmon edge state has been observed for a long time, but its nature is yet to be uncovered. Here, Jin et al. report that such a state is actually topological protected, analogous to the chiral Majorana edge state in a p-wave topological superconductor.
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影响因子:
8.6
作者:
ALEINER, IL;GLAZMAN, LI
通讯作者:
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影响因子:
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作者:
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影响因子:
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通讯作者:
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3.7
作者:
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通讯作者:
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