Phase-space representation of a non-Hermitian system with PT symmetry

被引：13

作者：

Praxmeyer, Ludmila ^{[1
]}

Yang, Popo ^{[2
]}

Lee, Ray-Kuang ^{[1
,2
,3
]}

机构：

[1] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[3] Natl Ctr Theoret Sci, Div Phys, Hsinchu 300, Taiwan

来源：

PHYSICAL REVIEW A | 2016年 / 93卷 / 04期

关键词：

PARITY-TIME SYMMETRY;

D O I：

10.1103/PhysRevA.93.042122

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a phase-space study of a non-Hermitian Hamiltonian with PT symmetry based on the Wigner distribution function. For an arbitrary complex potential, we derive a generalized continuity equation for the Wigner function flow and calculate the related circulation values. Studying the vicinity of an exceptional point, we show that a PT-symmetric phase transition from an unbroken PT-symmetry phase to a broken one is a second-order phase transition.

引用

页数：8

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