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)

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13 Citations (Scopus)


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 languageEnglish
Article number014428
JournalPhysical Review B
Issue number1
Publication statusPublished - 22 Jan 2018

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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