Influence of medium effects on the rotating hybrid stars

A hybrid star with a pure quark core,a hadron crust and a mixed phase between the two is considered.The relativistic mean field model for hadron matter and the effective mass bag model for quark matter are used to construct the equation of state for hybrid stars.The influences of medium effects that are parameterized by the strong coupling constant have been discussed on the configuration of rotating stars.The strong coupling constant is a prominent factor that influences the properties of rotating hybrid stars.     

Generation of Atomic Greenberger-Horne-Zeilinger States Based on Faraday Rotation

Based on the input-output relation of the cavity and the Faraday Rotation mechanism, we propose a scheme for generating the n-atom Greenberger Horne-Zeilinger state. In the scheme, the n-atom trapped respectively in n spatially separate cavities would be entangled with the photons going through the atom-cavity system. The successful probabilities of our protocol approach unity in the ideal case. What is more, no requirement for separately addressing further lowers experimental difficulties.     

Surface Corrugation in Rotational and Diffractive Scattering of O2 from LiF （001）

A quantum dynamic calculation on a five-dimensional O2/LiF （001） model system is performed using the multi-configuration time-dependent Hartree method. The obtained results show that the mechanism of rotational and diffractive excitation in details： Comparison with the rotational excited state, the initially non-rotational state is seen to favor the inelastic scattering in the rotational excitation process. The surface corrugation can damp the quantum interferences and produce a greater amount of rotational inelastic scattering at the expense of the elastic process in the rotational excitation process. The diffraction process and the average energy transferred into the rotational and diffractive mode are also discussed.     

Exotic Magnetic Rotation in 22F

The rotation structure in exotic neutron-rich nucleus 22F is investigated based on the configuration πd5/2（×）vd5/2s^-1 with the newly developed tilted axis cranking relativistic mean field theory in a fully microscopic and seff- consistent way. The possible existence of magnetic rotation is suggested for ^22F via investigating the spectra, the relation between the rotational frequency and the angular momentum, the electromagnetic transition probabilities B（ M1） and /3（E2） together with the shears mechanism characteristic of magnetic rotation. The effect of the nuclear current is also discussed by comparing the calculation results with and without currents.     

用跃变旋转矢量研究滑动摩擦空气阻尼弹簧振子

运用跃变旋转矢量法,即通过旋转矢量的起点、长度和相位的变化规律对受到空气弱阻尼作用和滑动摩擦力作用的弹簧振子的振动进行了研究.讨论了在滑动摩擦力作用下空气阻尼为临界阻尼和欠阻尼情况下的弹簧振子的运动,根据阻尼和初值情况得出不同的振动曲线.并对弹簧振子4种相图和相图旋转矢量进行了比较.     

基于法拉第旋转构造光子Bell态分析器和GHZ态分析器

基于偏振光被囚禁原子光腔反射后所获得的法拉第旋转构造了光子Bell态分析器和GHZ态分析器,并能实现非破坏地识别所有的光子Bell态和GHZ态.该方案不需要腔场的强耦合条件,在低品质光腔中也能实现,从而大大降低了实验难度.     

腔外原子操作控制腔内原子的纠缠特性

考虑初始处于W态的三个二能级原子,将其中两个原子同时分别注入处于真空态的两个腔中并发生共振相互作用的情况.采用数值计算方法,研究了对腔外原子的旋转操作和测量对腔内原子纠缠性质的影响.研究结果表明,通过对腔外原子的旋转操作和选择性测量可控制腔内原子的纠缠性质.     

光束在左手材料中的强度和相位旋转特性

建立了左手材料中拉盖尔高斯光束传输模型,通过研究拉盖尔高斯光束的相位分布来分析光束的强度旋转特性。具体分析了光束参数模式、Gouy相、频率和色散对光束强度和相位旋转特性的影响。研究发现:方位角相差是导致光束强度旋转的主要原因;负折射率引起的逆的Gouy相移将会导致光束强度反转;在正常色散区左手材料中光束的强度和相位旋转方向是相同的,而在反常色散区,左手材料中光束的强度和相位旋转方向是相反的。     

基于傅里叶-极坐标变换的相关结果后处理技术

在光学相关识别中,对相关输出结果进行后处理是保证图像识别准确性的关键之一。研究者通常采用神经网络技术对相关输出结果进行处理,并取得了较好的效果,但它需要预先准备大量的相关峰和噪声峰训练样本。根据极坐标变换能将笛卡尔坐标系下的旋转转变成平移的性质以及傅里叶变换的平移不变性,提出一种基于傅里叶-极坐标变换的相关结果后处理方法。验证结果表明:目标的旋转图像与目标自身的傅里叶-极坐标变换的相似度较大,而干扰图像与目标的傅里叶-极坐标变换的相似度较小。本文的方法在后处理阶段可对目标和干扰进行有效的分类识别,而且还能避免对相关峰和噪声峰训练样本的收集,从而使得光学相关识别系统的应用更加便利。     

GPC-LS联用法研究魔芋葡甘聚糖分子链形态

采用凝胶渗透色谱-激光光散射联用(GPC-LS)研究了经酶解后的魔芋葡甘聚糖(KGM)重均分子量(Mw)、均方根旋转半径(Rg)、构象指数(β)与温度的相关性,并结合KGM的特性粘度拟合酶解KGM的Mark-Houwink方程。结果显示:Rg与Mw表现出近似的正相关性,且Mw、Rg及β随温度升高而逐渐增大,酶解KGM的Mark-Houwink方程为[η]=5.9×10-1Mw0.562。