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.
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.
基金
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
Anhui Key Laboratory of Information Materials and Devices (Anhui University)
