中国物理B ›› 2003, Vol. 12 ›› Issue (3): 287-293.doi: 10.1088/1009-1963/12/3/307
王成志, 方卯发
Wang Cheng-Zhi (王成志), Fang Mao-Fa (方卯发)
摘要: In this paper, we investigate the quantum entanglement in a two-dimensional ion trap system. We discuss the quantum entanglement between the ion and phonons by using reduced entropy, and that between two degrees of freedom of the vibrational motion along x and y directions by using quantum relative entropy. We discuss also the influence of initial state of the system on the quantum entanglement and the relation between two entanglements in the trapped ion system.
中图分类号: (Quantum state engineering and measurements)