期刊论文

中文

原子与分子物理学报

1000-0364

2004

21

1

89-95

10.3969/j.issn.1000-0364.2004.01.021

湖南省科技厅中青年科技基金 (0 0JZY2 13 6) 湖南省自然科学基金 (0 2JJY2 0 9)的资助课题

本校为第一机构

以二能级原子作为量子位，利用求解相互作用系统约化密度矩阵非对角元的方法，分别研究热库中量子位模型和依赖强度耦合Jaynes-Cummings模型的消相干特性。当外加驱动场消除消相干时，得到两种模型下驱动场必须满足的约束方程。

Using a two-level atom as a quantum bit, We have studied the decoherent properties of the single quantum bit model in a thermal reservoir and the intensity dependent coupling Jaynes-Cummings model by calculating the non-oposite angle elements of the reduced density matrix of the intraction system,respectively. We also work out the restriction equation that must be satisfied by the external controllable drivi...