Based on the models used to deal with the interaction between the trapped ions and the laser , we investigate the physical foundation under the ion - trap computing and the evolution of the states of the trapped ions 本文在简要总结了处理激光与原子相互作用的几种物理模型的基础之上，详细研究了运用离子阱中囚禁离子对进行量子逻辑非门操作的物理原理及其在此相互作用过程中量子态的演化规律。
Considering that r limit to a small area we adopt lattice model . in the model , cell center form space lattice . quantum state of center of mass of molecule is corresponding to the particle in potential trap . secondly , hamiltonian operator is taken into account 再考虑到r |局限在空间一个小区域内，可采用格胞模型，格胞中心构成空间点阵，分子质心r |的量子态相当于谐振子势阱中的质点。
In chapter 3 , we focus our attention on discussing the geometric phase ( berry phase ) of quantum state evolving adiabatically and the controlling mechanism about the two - qubit conditional geometric quantum phase - shift gate realized by using of the adiabatic geometric phase - shift 第三章，集中讨论了量子态的绝热演化几何相( berry相)以及绝热几何相移实现的两量子位条件几何量子相移门的控制机制。
Based on a magnetic field controlled electron spin quantum system , utilizing the mechanism of realizing the unitary evolution of the quantum state through the quantum gate , an optimal control strategy to prepare an arbitrary quantum state is proposed 摘要针对以磁场为控制场的电子自旋量子比特系统，结合量子门实现量子态么正演化的量子态调控机制，提出了一种量子比特系统任意量子态的最优制备策略。
Experimental results of four - photon de broglie wavelength measurement are analyzed based on a local description for the quantum state and optical field of photon pairs generated from spontaneous parametric down - conversion ( spdc ) 摘要采用对自发参量下转换过程产生的光子对的量子态和光场的非纠缠态描述，分析了由自发参量下转换过程产生的四光子的德布罗意波长测量的实验，得到了与实验观测相一致的结果。
