中国物理B ›› 2016, Vol. 25 ›› Issue (8): 80305-080305.doi: 10.1088/1674-1056/25/8/080305

• GENERAL • 上一篇    下一篇

Scheme for preparation of multi-partite entanglement of atomic ensembles

Peng Xue(薛鹏), Zhi-Hao Bian(边志浩)   

  1. Department of Physics, Southeast University, Nanjing 211189, China
  • 收稿日期:2015-11-12 修回日期:2016-04-09 出版日期:2016-08-05 发布日期:2016-08-05
  • 通讯作者: Peng Xue E-mail:gnep.eux@gmail.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11174052 and 11474049) and the China Advanced Science and Technology Innovation Fund.

Scheme for preparation of multi-partite entanglement of atomic ensembles

Peng Xue(薛鹏), Zhi-Hao Bian(边志浩)   

  1. Department of Physics, Southeast University, Nanjing 211189, China
  • Received:2015-11-12 Revised:2016-04-09 Online:2016-08-05 Published:2016-08-05
  • Contact: Peng Xue E-mail:gnep.eux@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11174052 and 11474049) and the China Advanced Science and Technology Innovation Fund.

摘要: We show a scheme of preparing multipartite W type of maximally entangled states among many atomic ensembles with the generation time increasing with the party number only polynomially. The scheme is based on laser manipulation of atomic ensembles and single-photon detection, and fits well the status of the current experimental technology. We also show one of the applications of this kind of W state, demonstrating Bell theorem without inequalities.

关键词: multi-partite entanglement, atomic ensembles

Abstract: We show a scheme of preparing multipartite W type of maximally entangled states among many atomic ensembles with the generation time increasing with the party number only polynomially. The scheme is based on laser manipulation of atomic ensembles and single-photon detection, and fits well the status of the current experimental technology. We also show one of the applications of this kind of W state, demonstrating Bell theorem without inequalities.

Key words: multi-partite entanglement, atomic ensembles

中图分类号:  (Quantum information)

  • 03.67.-a
03.65.Ud (Entanglement and quantum nonlocality) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)