中国物理B ›› 2009, Vol. 18 ›› Issue (6): 2319-2323.doi: 10.1088/1674-1056/18/6/034

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Quantum superdense coding via cavity-assisted interactions

潘国柱1, 杨名1, 曹卓良2   

  1. (1)Key Laboratory of Opto-electronic Information Acquisition and Manipulation, Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039, China; (2)Key Laboratory of Opto-electronic Information Acquisition and Manipulation, Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039, China;Department of Physics, Hefei Teachers College, Hefei 230061, China
  • 收稿日期:2008-10-13 修回日期:2008-11-18 出版日期:2009-06-20 发布日期:2009-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60678022 and 10704001), the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No 20060357008), Anhui Provincial Natural Science Foundation (Grant No 070412060), the Talent Foundation of Anhui University, and Anhui Key Laboratory of Information Materials and Devices (Anhui University).

Quantum superdense coding via cavity-assisted interactions

Pan Guo-Zhu(潘国柱)a)c), Yang Ming(杨名)a)†, and Cao Zhuo-Liang(曹卓良)a)b)   

  1. a Key Laboratory of Opto-electronic Information Acquisition and Manipulation, Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039, China; b Department of Physics, Hefei Teachers College, Hefei 230061, China; c Basic Experiment Center, West Anhui University, Lu'an 237012, China
  • Received:2008-10-13 Revised:2008-11-18 Online:2009-06-20 Published:2009-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60678022 and 10704001), the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No 20060357008), Anhui Provincial Natural Science Foundation (Grant No 070412060), the Talent Foundation of Anhui University, and Anhui Key Laboratory of Information Materials and Devices (Anhui University).

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摘要： Quantum superdense coding (QSC) is an example of how entanglement can be used to minimize the number of carriers of classical information. This paper proposes two schemes for implementing QSC by means of cavity assisted interactions with single-photon pulses. The schemes are insensitive to the cavity decay and the thermal field, thus it might be realizable based on the current cavity QED techniques.

关键词: quantum superdense coding, cavity QED

Abstract: Quantum superdense coding (QSC) is an example of how entanglement can be used to minimize the number of carriers of classical information. This paper proposes two schemes for implementing QSC by means of cavity assisted interactions with single-photon pulses. The schemes are insensitive to the cavity decay and the thermal field, thus it might be realizable based on the current cavity QED techniques.

Key words: quantum superdense coding, cavity QED

中图分类号:  (Entanglement measures, witnesses, and other characterizations)

  • 03.67.Mn
03.67.Hk (Quantum communication) 37.10.Vz (Mechanical effects of light on atoms, molecules, and ions) 42.50.Dv (Quantum state engineering and measurements) 42.50.Pq (Cavity quantum electrodynamics; micromasers)