Abstract 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.
Received: 13 November 2007
Revised: 09 June 2008
Accepted manuscript online:
(Quantum computation architectures and implementations)
Fund: Project supported by the Natural Science
Foundation of Jiangxi
Province, China (Grant Nos 0612006 and 2007GZW0819), the Scientific Research
Foundation of Jiangxi Provincial Department of Education, China (Grant No
[2007]191), and Funds from East China Jiaotong University.
Cite this article:
Deng Li(邓黎), Chen Ai-Xi(陈爱喜), and Xu Yan-Qiu(徐彦秋) High efficient scheme for remote state preparation with cavity QED 2008 Chin. Phys. B 17 3725
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