中国物理B ›› 2008, Vol. 17 ›› Issue (10): 3725-3728.doi: 10.1088/1674-1056/17/10/032
邓 黎, 陈爱喜, 徐彦秋
Deng Li(邓黎), Chen Ai-Xi(陈爱喜)†, and Xu Yan-Qiu(徐彦秋)
摘要: In this paper, a scheme is proposed for remote state preparation (RSP) with cavity quantum electrodynamics (QED). In our scheme, two observers share two-atom nonmaximally entangled state as quantum channels and can realize remote preparation of state of an atom. We also propose a generalization for remote preparation of $N$-atom entangled state by ($N$+1)-atom {GHZ-like} state ($N \ge 2)$. By this scheme, one single-atom projective measurement is enough for the RSP of a qubit or $N$-atom entangled state, and the probability of success for RSP is unity. Furthermore, we have considered the case where observers use {W-like} state as quantum channels to realize RSP of a qubit. We compare our scheme with existing ones.
中图分类号: (Cavity quantum electrodynamics; micromasers)