An experimentally feasible scheme for implementing quantum secret sharing via cavity quantum electrodynamics （QED） is proposed. The scheme requires the large detuning of the cavity field from the atomic transition, ...An experimentally feasible scheme for implementing quantum secret sharing via cavity quantum electrodynamics （QED） is proposed. The scheme requires the large detuning of the cavity field from the atomic transition, the cavity is only virtually excited, thus the requirement on the quality factor of the cavity is greatly loosened.展开更多
Quantum dense coding （QDC） is a process originally proposed to send two classical bits information from a sender to a receiver by sending only one qubit. Our scheme of QDC is proposed following some ideas on secret ...Quantum dense coding （QDC） is a process originally proposed to send two classical bits information from a sender to a receiver by sending only one qubit. Our scheme of QDC is proposed following some ideas on secret sharing with entanglement in cavity QED. Based on the theory of secret sharing the QDC process can be more secure.展开更多
We present an efficient scheme for undeniable five-party quantum state sharing(FQSTS) of an arbitrary single-atom state with a five-atom cluster state in cavity QED.The implementation of this scheme does not involve t...We present an efficient scheme for undeniable five-party quantum state sharing(FQSTS) of an arbitrary single-atom state with a five-atom cluster state in cavity QED.The implementation of this scheme does not involve the joint-state measurement of multi-atoms,which makes it convenient in a practical application.The scheme is also insensitive to the cavity decay and the thermal field.展开更多
基金Project supported by the Fujian Provincial Natural Science Foundation （Grant No A0410016）.
文摘An experimentally feasible scheme for implementing quantum secret sharing via cavity quantum electrodynamics （QED） is proposed. The scheme requires the large detuning of the cavity field from the atomic transition, the cavity is only virtually excited, thus the requirement on the quality factor of the cavity is greatly loosened.
基金National Natural Science Foundation of China under Grant Nos.60678022 and 10674001the Key Program of the Education Department of Anhui Province under Grant Nos.2006KJ070A and 2006KJ057B+1 种基金the Talent Foundation of Anhui UniversityAnhui Key Laboratory of Information Materials and Devices of Anhui University
文摘Quantum dense coding （QDC） is a process originally proposed to send two classical bits information from a sender to a receiver by sending only one qubit. Our scheme of QDC is proposed following some ideas on secret sharing with entanglement in cavity QED. Based on the theory of secret sharing the QDC process can be more secure.
基金supported by the National Natural Science Foundation of China(Grant Nos.61170270 and 61003290)the Specialized Research Fund for the Doctoral Program of Higher Education(Grant Nos. 20091103120014 and 20090005110010)+1 种基金the Beijing Natural Science Foundation(Grant Nos.4122008 and 1102004)the ISN Open Foundation
文摘We present an efficient scheme for undeniable five-party quantum state sharing(FQSTS) of an arbitrary single-atom state with a five-atom cluster state in cavity QED.The implementation of this scheme does not involve the joint-state measurement of multi-atoms,which makes it convenient in a practical application.The scheme is also insensitive to the cavity decay and the thermal field.
