A new geometric phase factor is defined for any cyclic evolution of a quantum system. 一个新的几何相因子被定义为任意一个量子系统(QS)的循环演化。
Results Obtain the dynamic equation and channel model of the open quantum system, including the quantum coding principle, method and line based on the decoherence free subspace ( DFS ). 结果得到了开放量子系统(QS)的动力学方程和信道模型,给出了基于无消相干子空间的量子编码原理、方法和量子线路。
A simplified derivation of superconvergent perturbation for quantum system by means of unitary transformation directly are given. 直接用酉变换给出量子系统(QS)超收敛微扰的简化推导。
A new experiment shows that measuring a quantum system does not necessarily introduce uncertainty. 一项新的实验证明,对量子系统(QS)的测量并不一定是不确定性的来源。
Disentanglement refers to the transformation of entangled quantum system intodisentangled system via some physical processes. 所谓消纠缠,是指通过一定的物理过程,使原来纠缠的量子系统(QS)变得“不纠缠”。