高能量子碰撞

项目名称： 高能量子碰撞

项目编号： No.11474209

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 黄克宁

作者单位： 四川大学

项目金额： 90万元

中文摘要： 我们将致力于「原子物理基础研究」，并为「量子信息」和「量子纠缠」，提供理论基础。我们对「高能量子碰撞过程」的研究里，将包括「量子电动效应」和高阶「多极场」，如磁偶极和电四极等。其中关于「角布」和「极化」的纠结关系，将利用「运动学」作详尽的解析。为了合并考虑相干和非相干效应，碰撞过程的反应物和产物，将由「态极矩」描述，而碰撞入和出通道，都将以「旋态形式」表述。由「量子场论」严谨推导出的「相对量子运动方程」，则用来提供碰撞过程的「动力参数」。首先，我们将以「多态相对混相理论」，处理高Z离子的「双激共振光离过程」。除有不随「电磁规范」改变的好处外，「多态相对混相理论」在「相对论」和「场论」的架构下，一致对待初态和末态，而且还能同时处理离散和连续电子相关性，对于高Z原子或离子，这样的理论要求是不可或缺的。

中文关键词： 高能量；量子碰撞；光游离；极化；碰撞游离

英文摘要： We endeavor to pursue fundamental studies in atomic physics, which should provide theoretical foundations for quantum information and quantum entanglement.High- energy quantum collision processes are studied including quantum-electrodynamic (QED) effects and high multipole-fields, such as magnetic dipole and electric quadrupole, etc. Kinematic analyses will be carried out in great detail for angular and polarization correlations. To include coherent as well as incoherent effects in a unified fashion, reactants and products of a collision will be described by state multipoles. Both the incoming and outgoing channels are formulated in the helicity formalism. Based on quantum field theory， the exact relativistic quantum equation-of-motion (REM) will be solved to provide dynamical parameters for collision processes. As the cutting edge, the multi-configuration relativistic random-phase-approximation theory (MCRRPA) will be applied to double-excitation resonances in photoionization processes of highly-ionized ions. Besides being relativistic and gauge-independent, the MCRRPA incorporates both the initial- and final-state correlations from the outset and deals with discrete as well as continuum electron correlations, which are required for high-Z atom and ions.

英文关键词： high energy;quantum collision;photoionization;polarization;impact ionization