Quantum-optical implementation of non-Hermitian potentials for asymmetric scattering

被引：4
作者：
Ruschhaupt, A. [1 ]
Kiely, A. [2 ]
Simon, M. A. [3 ]
Muga, J. G. [3 ]
机构：
[1] Univ Coll Cork, Dept Phys, Cork, Ireland
[2] Univ Coll Dublin, Sch Phys, Belfield 4, Ireland
[3] Univ Basque Country, Dept Quim Fis, Apdo 644, Bilbao 48080, Spain
来源：
PHYSICAL REVIEW A | 2020年 / 102卷 / 05期
基金：
爱尔兰科学基金会;
关键词：
UNIFIED THEORY; TIME; RECIPROCITY;
D O I：
10.1103/PhysRevA.102.053705
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Non-Hermitian, one-dimensional potentials which are also nonlocal, allow for scattering asymmetries, namely, asymmetric transmission or reflection responses to the incidence of a particle from left or right. The symmetries of the potential imply selection rules for transmission and reflection. In particular, parity-time (PT) symmetry or the symmetry of any local potential do not allow for asymmetric transmission. We put forward a feasible quantum-optical implementation of non-Hermitian, nonlocal, non-PT potentials to implement different scattering asymmetries, including transmission asymmetries.
引用
收藏
页数：10
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