The dynamical properties of Rydberg hydrogen atom near a metal surface |
| |
Authors: | Ge Meihua Zhang Yanhui Wang Dehua Du Mengli and Lin Shenglu |
| |
Institution: | (1) College of Physics and Electronics, Shandong Normal University, 250014 Jinan, China;(2) Department of Mathematics and Physics, Shandong Institute of Architecture and Engineering, 250014 Jinan, China;(3) Institute of Theoretical Physics, Chinese Academy of Sciences, 100080 Beijing, China |
| |
Abstract: | The dynamical properties of Rydberg hydrogen atom near a metal surface are presented by using the methods of phase space analysis
and closed orbit theory. Transforming the coordinates of the Hamiltonian, we find that the phase space of the system is divided
into vibrational and rotational region. Both the Poincaré surface of section and the closed orbit theory verify the same conclusion
clearly. In this paper we choose the atomic principal quantum number asn=20. The dynamical character of the exited hydrogen atom depends sensitively on the atom-surface distanced. Whend is sufficiently large, the atom-surface potential can be expressed by the traditional van der Waals force and the system
is integrable. Whend becomes smaller, there exists a critical valued
c. Ford>d
c, the system is near-integrable and the motion is regular. While chaotic motion appears ford<d
c, and the system tends to be non-integrable. The trajectories become unstable and the electron might be captured onto the
metal surface. |
| |
Keywords: | Rydberg hydrogen atom van der Waals interaction Poincaré surface of section closed orbit theory chaos |
本文献已被 SpringerLink 等数据库收录! |
|