Position-dependent oscillated decay of a two-level atom immersed in a two-dimensional photon fluid

被引：1

作者：

Zhang, Xiongfeng ^{[1
]}

Yin, Miao ^{[1
]}

Liang, Wenyao ^{[1
]}

机构：

[1] S China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2016年 / 359卷

基金：

中国国家自然科学基金;

关键词：

Spontaneous emission; Photon superfluid; Decay rate; SPONTANEOUS EMISSION; LASER HYDRODYNAMICS; MICROCAVITY; RADIATION; CRYSTALS; SHIFT;

D O I：

10.1016/j.optcom.2015.09.064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Weisskopf-Wigner theory has been used to investigate the spontaneous emission of a two-level atom placed in a photon superfluid. It is found that the atom decays exponentially. However, the atomic decay rate changes periodically with the position of the atom and it is minimal when the atom is located at the wave nodes. The largest decay rate of the atom in photon superfluid has the same order of magnitude as it is in vacuum of free space. Moreover, the analytical result shows that the decay of an atom in photon superfluid, compared with that in planar cavity without photon superfluid, will be inhibited. The physical origin of atomic decay inhibition is also discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：44 / 48

页数：5