自旋团簇量子主方程的复合动力学对称性和热力学性质  

Complex dynamics symmetry and thermodynamic properties of the quantum master equation of the spin cluster

作　　者：张伶俐[1] 贝承训[1] 马佳洪[1] 

机构地区：[1]华南理工大学南校区物理实验中心,广州510006

出　　处：《原子与分子物理学报》2007年第4期739-744,共6页Journal of Atomic and Molecular Physics

摘　　要：基于三同核线型自旋团簇(每个粒子的自旋为S=1/2)的非自治量子主方程,研究了处于热辐射场中的自旋团簇的热力学性质.利用新颖的代数动力学方法,即引入动力学群的左右表象,不仅发现了自旋团簇的一个子空间态具有的SU(2)U(1)U(1)结构,而且对该子空间态在演化中所产生的耗散和退相干性质进行了计算.Based on the non-autonomous quantum master equation of homotrinuclear linear spin cluster （each particle with S = 1/2）, the thermodynamic properties of spin cluster in the environment of thermal quantum radiation fields are investigated. By a novel algebraic dynamical method, namely introducing the right and left representation of dynamical group, we not only found that this system has SU（2）＋U（1）＋U（1） algebraic structure for subspace states of the cluster system, but also calculated the dissipative and decoherence evolutive properties for this subspace states.

关 键 词：三同核线型 自旋团簇 量子信息 量子计算 

分 类 号：O623.11[理学—有机化学]