Spontaneous PT-symmetry breaking in complex frequency band structures

被引：20
|
作者：
Yannopapas, Vassilios [1 ]
机构：
[1] Natl Tech Univ Athens, Dept Phys, GR-15780 Athens, Greece
来源：
PHYSICAL REVIEW A | 2014年 / 89卷 / 01期
关键词：
NON-HERMITIAN HAMILTONIANS; TRANSMISSION; EIGENVALUES; PHOTONS; SPECTRA; PROGRAM; WAVES;
D O I：
10.1103/PhysRevA.89.013808
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate that the process of band-gap creation in periodic solids such as atomic, photonic, or phononic crystals can be viewed as spontaneous PT-symmetry breaking in the framework of a complex frequency band structure. This allows the use of ordinary artificial structures such as Bragg stacks and simple photonic crystals as suitable test beds for the study of phenomena related to PT-symmetry breaking.
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页数：4
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