外电场中金属表面附近里德堡氢原子的动力学行为

李洪云; 岳大光; 梁志强; 伊长虹; 陈建中

doi:10.7498/aps.62.203401

摘要

利用相空间分析方法研究了外电场中金属表面附近里德堡氢原子的动力学性质. 结果表明, 体系的动力学性质敏感地依赖于原子与金属表面间的距离和电场强度.通过固定原子与金属表面间的距离, 分析了外加电场作用下里德堡电子的Poincar 截面和运动轨迹的演化过程. 研究表明: 电场的出现加速了金属表面对电子的吸附, 随着电场强度的增加,体系的动力学性质由原子与金属表面间的距离控制逐渐变为由电场起主导作用,体系逐渐由不可积变为可积, 电子的运动轨道最终全部变为振动型轨道.

关键词:

Abstract

The dynamical properties of Rydberg hydrogen atom in an electric field near a metal surface are presented by analyzing the phase space. The dynamical behavior of the excited hydrogen atom depends sensitively on the atom-surface distance and the electric field strength. The evolutions of the Poincar surface of section and the electric orbit are analyzed for a certain atom-surface distance and different electric field strengths. The results indicate that the electric field accelerates the adsorption of electron. With the increase of the electric field strength, the controlling factor of dynamical behavior changes from the atom-surface distance to the electric field strength. As the electric field strength becomes very large, the system is integrable and all the electric orbits become vibrational type of orbits.

Keywords:

作者及机构信息

1.
山东交通学院理学院, 济南 250357

基金项目: 国家自然科学基金(批准号:10774093)和山东交通学院博士基金资助的课题.

Authors and contacts

1.
School of Science, Shandong Jiaotong University, Jinan 250357, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 10774093) and the Doctor Foundation of Shandong Jiaotong University, China.

参考文献

[1]	Landragin A, Courtois J Y, Labeyrie G, Vansteenkiste N, Westbrook C, Aspect A 1996 Phys. Rev. Lett. 77 1464
[2]	Iñarrea M, Salas J P, Lanchares V 2002 Phys. Rev. E 66 056614
[3]	Wang D H 2007 Chin. Phys. 16 692
[4]	Yang H F, Wang L, Liu X J, Liu H P 2011 Chin. Phys. B 20 063203
[5]	Tang T T, Wang D H, Huang K Y, Wang S S 2011 Chin. Phys. B 20 063205
[6]	Wang D H, Huang K Y 2010 Chin. Phys. B 19 063402
[7]	Salas J P, Simonovic N S 2000 J. Phys. B 33 291
[8]	Ganesan K, Taylor K 1996 J. Phys. B 29 1293
[9]	Salas J P, Deprit A, Ferrer S, Lanchares V, Palacián J 1998 Phys. Lett. A 242 83
[10]	Nordlander P, Dunning F B 1996 Phys. Rev. B 53 8083
[11]	Nedeljkovi N N, Nedeljkovi L D 2005 Phys. Rev. A 72 032901
[12]	Wang D H, Wu A L 2008 J. Electron Spec. Rel. Phen. 165 36
[13]	Simonovic N S 1997 J. Phys. B 30 L613
[14]	Gao J, Delos J B 1992 Phys. Rev. A 46 1455
[15]	Liu W, Li H Y, Yang S Y, Lin S L 2011 Chin. Phys. B 20 033401

施引文献

[1]	Landragin A, Courtois J Y, Labeyrie G, Vansteenkiste N, Westbrook C, Aspect A 1996 Phys. Rev. Lett. 77 1464
[2]	Iñarrea M, Salas J P, Lanchares V 2002 Phys. Rev. E 66 056614
[3]	Wang D H 2007 Chin. Phys. 16 692
[4]	Yang H F, Wang L, Liu X J, Liu H P 2011 Chin. Phys. B 20 063203
[5]	Tang T T, Wang D H, Huang K Y, Wang S S 2011 Chin. Phys. B 20 063205
[6]	Wang D H, Huang K Y 2010 Chin. Phys. B 19 063402
[7]	Salas J P, Simonovic N S 2000 J. Phys. B 33 291
[8]	Ganesan K, Taylor K 1996 J. Phys. B 29 1293
[9]	Salas J P, Deprit A, Ferrer S, Lanchares V, Palacián J 1998 Phys. Lett. A 242 83
[10]	Nordlander P, Dunning F B 1996 Phys. Rev. B 53 8083
[11]	Nedeljkovi N N, Nedeljkovi L D 2005 Phys. Rev. A 72 032901
[12]	Wang D H, Wu A L 2008 J. Electron Spec. Rel. Phen. 165 36
[13]	Simonovic N S 1997 J. Phys. B 30 L613
[14]	Gao J, Delos J B 1992 Phys. Rev. A 46 1455
[15]	Liu W, Li H Y, Yang S Y, Lin S L 2011 Chin. Phys. B 20 033401

姓名
邮箱
手机号码
标题
留言内容
验证码

搜索

留言板