Coalescence of nonreciprocal exceptional points in magnetized PT -symmetric systems

Jin Wang; Hui Yuan Dong; Qian Yi Shi; Wenyan Wang; Kin Hung Fung

doi:10.1103/PhysRevB.97.014428

Coalescence of nonreciprocal exceptional points in magnetized PT -symmetric systems

Jin Wang, Hui Yuan Dong, Qian Yi Shi, Wenyan Wang, Kin Hung Fung (Corresponding Author)

Research output: Journal article publication › Journal article › Academic research › peer-review

15 Citations (Scopus)

Abstract

We study the Lorentz nonreciprocal transmission and nonreciprocal complex band structures supported in a PT-symmetric waveguide sandwiched by magnetized layers. We found that, near the emergency and coalescence of exceptional points, nonreciprocal transmission can be significantly enhanced by the non-Hermitian properties. With the help of gain-loss balance, one-way light transmission could be achieved even in the presence of a weak magnetic field. The results may offer us insight into the interplay between Lorentz nonreciprocity and non-Hermiticity.

Original language	English
Article number	014428
Journal	Physical Review B
Volume	97
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.97.014428
Publication status	Published - 22 Jan 2018

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.97.014428

http://hdl.handle.net/10397/95629

Cite this

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abstract = "We study the Lorentz nonreciprocal transmission and nonreciprocal complex band structures supported in a PT-symmetric waveguide sandwiched by magnetized layers. We found that, near the emergency and coalescence of exceptional points, nonreciprocal transmission can be significantly enhanced by the non-Hermitian properties. With the help of gain-loss balance, one-way light transmission could be achieved even in the presence of a weak magnetic field. The results may offer us insight into the interplay between Lorentz nonreciprocity and non-Hermiticity.",

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AU - Wang, Jin

AU - Dong, Hui Yuan

AU - Shi, Qian Yi

AU - Wang, Wenyan

AU - Fung, Kin Hung

PY - 2018/1/22

Y1 - 2018/1/22

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AB - We study the Lorentz nonreciprocal transmission and nonreciprocal complex band structures supported in a PT-symmetric waveguide sandwiched by magnetized layers. We found that, near the emergency and coalescence of exceptional points, nonreciprocal transmission can be significantly enhanced by the non-Hermitian properties. With the help of gain-loss balance, one-way light transmission could be achieved even in the presence of a weak magnetic field. The results may offer us insight into the interplay between Lorentz nonreciprocity and non-Hermiticity.

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Coalescence of nonreciprocal exceptional points in magnetized PT -symmetric systems

Abstract

ASJC Scopus subject areas

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