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)
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
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.
Received: 13 October 2008
Revised: 18 November 2008
Accepted manuscript online:
PACS:
03.67.Mn
(Entanglement measures, witnesses, and other characterizations)
Fund: 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).
Cite this article:
Pan Guo-Zhu(潘国柱), Yang Ming(杨名), and Cao Zhuo-Liang(曹卓良) Quantum superdense coding via cavity-assisted interactions 2009 Chin. Phys. B 18 2319
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