利用数值方法研究了超精细能级分裂的原子系统中电磁诱导透明暗态随时间的演化和驻波光场中 稳态布居的空间相关性。考虑圆偏振和线偏振两种极化方案,并且将组合后的结果与简单三能级情况相比较。 分析结果表明,圆偏极化方式下暗态的布居分 布比线偏极化方式下更接近简单三能级的分析结果,而且圆偏极化方式下的局域化分辨率更好。 演化的过程还说明,系统达到稳态需要足够长的相互作用时间。

研究了考虑内禀退相干情况下，两粒子XXZ海森堡系统中量子纠缠在各种外界因素影响下的动态演化规律。研究发现无论系统的初态是否处于最大纠缠态，内禀退相干都会对系统纠缠的含时演化有明显的抑制作用。如果系统的初态为纠缠态|ψ(0)〉=c|01〉+d|10〉，系统的纠缠与各向异性参数和外加磁场没有关系，却受到Dzyaloshinskii-Moriya(DM)相互作用程度和内禀退相干因素的明显影响；如果系统的初态为纠缠态|ψ(0)〉=a|00〉+b|11〉，系统的纠缠与DM相互作用大小和各向异性参数无关，纠缠程度不仅要受到内禀退相干因素的影响，还会被外加磁场进一步削弱。

Transmission studies for one-dimensional photonic crystals (1DPCs) containing single-negative (SNG) materials inserted with multiple defects are presented. The numbers and positions of the defect modes inside zero-phase (zero-\fai eff) gap are found to be well characterized by effective medium theory.

The gradient force, as a function of position and velocity, is derived for a two-level atom interacting with a standing-wave laser field. Basing on optical Bloch equations, the numerical solutions for the gradient force f_(|_;n) (n = 0, 1, 2, 3, 4, ...) pointing in the direction of the transverse of the laser beam are given. It is shown the higher order gradient force plays important role at strong intensity (G = 64), the contribution of them can not be neglected.