Nonclassical Properties of Photon-Added Pair Coherent States

After analyzing the course of forming‘garbageblocks’,we proposed an alternative for preparing the pseudo-pure states.It can be used to reduce or even to remove the‘garbageblocks’.     

核磁共振实现基本量子逻辑门和量子分立付里叶变换

本文详细研究了利用核磁共振方法实现基本量子逻辑操作,提出了实现量子分立付里叶变换的实验方案,设计了可供实验的脉冲系列,为实验研究量子分立付里叶变换提供了具体方案。     

离子阱中量子受控非门的操作误差的分析与提纯

处理了离子阱中量子受控非门的操作出错问题。通过增加一次投影测量，可以对输出结果作有效的提纯，使误差减至一阶小量，在某些情况下甚至能减小到二阶小量。对本方案的局限性进行了讨论。     

在相干态表象中精确求解无旋波近似的Jaynes-Cummings模型

在相干态表象中精确求解了无旋波近似的Jaynes-Cummings模型，并导出了相应的限制性条件．所求得的解析解与用微扰论求得的近似解比较，当微扰级数取无穷时所得结果一致．本文的方法能方便地推广到三能级系统的讨论． 关键词：     

Quantum teleportation of an arbitrary superposition of atomic states

This paper proposes a scheme to teleport an arbitrary multi-particle two-level atomic state between two parties or an arbitrary zero- and one-photon entangled state of multi-mode between two high-Q cavities in cavity QED. This scheme is based on the resonant interaction between atom and cavity and does not involve Bell-state measurement. It investigates the fidelity of this scheme and find out the case of this unity fidelity of this teleportation. Considering the practical case of the cavity decay, this paper finds that the condition of the unity fidelity is also valid and obtains the effect of the decay of the cavity on the successful probability of the teleportation.     

驻波场中囚禁于Paul阱中的单个离子的内部动力学特性的研究

利用含时多量子非线性Ｊａｙｎｅｓ－Ｃｕｍｍｉｎｇｓ模型时办禁子Ｐａｕｌ阱中在驻波场作用下单个离了的动力学行为作了一个完备的描述,工研究了它的含时因素及非线性特性对其动力学行为的影响,它于精确测量和控制Ｐａｕｌ阱的单个离子的运动具有重要的意义。     

超冷离子扩展Jaynes-Cummings模型的动力特性研究

利用Paul阱中超冷离子的质心运动、内部运动和量子化光场的全量子相互作用的扩展Jaynes-Cummings模型,分析了不同初态条件下态矢量和布居数的时间演化,发现当离子初态为内外运动纠缠态时,无论是红边带激发还是蓝边带激发,系统都会显现新的位相相关的动力学特性. 关键词：     

量子Grover搜索在离子阱中的实现方案

本文在Cirac-Zoller模型的框架下,讨论在离子阱中如何实现多量子比特Grover搜索的方案。     

Feasible Scheme for Teleportation of an Arbitrary N-Atom State with Thermal Cavity

We present a scheme for teleportation of an arbitrary cavity QED, and show the feasibility in experiment. thermal field, and the fidelity of teleportation is only the success probability reaches 1.0. N-atom state without Bell state measurement in thermal Our scheme is also insensitive to both cavity decay and slightly affected by the experimental errors. In addition,