原子与分子物理学报2003，Vol.20Issue(4)：549-552,4.
Quantum fluctuation dynamics in momentum spread of cold atoms
Quantum fluctuation dynamics in momentum spread of cold atoms
摘要
Abstract
Dynamics of the quantum system that consists of a cold atom in a modulated standing wave of light is analyzed using the time-dependent variational principle formulation based on squeezed coherent states. A group of ordinary differential equations describing evolution of two pairs of canonically conjugate variables (q(t), p(t); G(t), Π(t)) are derived where G(t) and Π(t) describe the quantum fluctuations of the system. It has been shown that a transition from the regular motion to the chaotic motion in G(t), Π(t) phase space. Quantum system seems to be capable to show the classical-like chaotic structure.关键词
Quantum fluctuations/Chaos/Time-dependent variational principleKey words
Quantum fluctuations/Chaos/Time-dependent variational principle分类
数理科学引用本文复制引用
WANG Zhong-jie,WANG Qin-mou,HUANG Wan-xia..Quantum fluctuation dynamics in momentum spread of cold atoms[J].原子与分子物理学报,2003,20(4):549-552,4.基金项目
Supported by the Natural Science Foundation of Anhui Normal University.. （）
