中国物理B ›› 2005, Vol. 14 ›› Issue (10): 2009-2013.doi: 10.1088/1009-1963/14/10/015
方卯发1, 曾可2
Zeng Ke (曾可)ab, Fang Mao-Fa (方卯发)a
摘要: The entanglement properties of the system of two two-level atoms interacting with a single-mode vacuum field are explored. The quantum entanglement between two two-level atoms and a single-mode vacuum field is investigated by using the quantum reduced entropy; the quantum entanglement between two two-level atoms, and that between a single two-level atom and a single-mode vacuum field are studied in terms of the quantum relative entropy. The influences of the atomic dipole--dipole interaction on the quantum entanglement of the system are also discussed. Our results show that three entangled states of two atoms--field, atom--atom, and atom--field can be prepared via two two-level atoms interacting with a single-mode vacuum field.
中图分类号: (Quantum state engineering and measurements)