Spontaneous Emission of an Inertial Multi-Level Atom in a Spacetime with a Reflecting Plane Boundary  

作　　者：朱致英 余洪伟 

机构地区：[1]Department of Physics, Hunan Normal University, Changsha 410081

出　　处：《Chinese Physics Letters》2006年第8期2012-2015,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10375023 and 10575035, the Programme for NCET （No 04-0784）, and the Key Project of the Ministry of Education of China （No 205110）.

摘　　要：We calculate the contributions of the vacuum fluctuations and radiation reaction to the rate of change of the mean atomic energy for a multi-level hydrogen atom in the multipolar coupling scheme in a spacetime with a reflecting boundary. Our results show that, due to the presence of the boundary, the polarizations of the atom in the parallel direction and in the normal direction are weighted differently in terms of their contributions to the spontaneous emission rate, which is an oscillating function of the atom distance from the boundary. The possible experimental implications of our result are briefly discussed.We calculate the contributions of the vacuum fluctuations and radiation reaction to the rate of change of the mean atomic energy for a multi-level hydrogen atom in the multipolar coupling scheme in a spacetime with a reflecting boundary. Our results show that, due to the presence of the boundary, the polarizations of the atom in the parallel direction and in the normal direction are weighted differently in terms of their contributions to the spontaneous emission rate, which is an oscillating function of the atom distance from the boundary. The possible experimental implications of our result are briefly discussed.

关 键 词：CHARGED TEST PARTICLE VACUUM FLUCTUATIONS RADIATION REACTION CYLINDRICALSPACETIME RANDOM MOTION VELOCITY ENERGY SYSTEM SHIFTS 

分 类 号：O413[理学—理论物理]