Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77436
Title: Coalescence of nonreciprocal exceptional points in magnetized PT -symmetric systems
Authors: Wang, J 
Dong, HY
Shi, QY
Wang, W 
Fung, KH 
Issue Date: 2018
Publisher: American Physical Society
Source: Physical review B : covering condensed matter and materials physics, 2018, v. 97, no. 1, 14428 How to cite?
Journal: Physical review B : covering condensed matter and materials physics 
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.
URI: http://hdl.handle.net/10397/77436
ISSN: 2469-9950
EISSN: 2469-9969
DOI: 10.1103/PhysRevB.97.014428
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