Lossless edge states protected by PT-Symmetric phase
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Ni, Xiang
Smirnova, Daria
Poddubny, Alexander
Leykam, Daniel
Chong, Yidong
Khanikaev, Alexander
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Institute of Electrical and Electronics Engineers Inc.
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Abstract
Parity-time (PT) symmetric interfaces between amplifying and lossy crystals support dissipationless edge states exhibiting gapless spectra in complex band structure if exceptional points (EPs) of edge states exist, which is verified by rigorous full-wave simulations in PT-symmetric photonic graphene.
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Book Title
2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings
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Publication