Title :
An Efficient Deterministic Secure Quantum Communication Scheme with W State
Author :
Liu, Wenjie ; Chen, Hanwu ; Ma, Tinghuai ; Tian, Wei
Author_Institution :
Sch. of Comput. & Software, Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China
Abstract :
In this paper, a novel deterministic secure quantum communication scheme with four-qubit W states is proposed. By utilizing four kinds of unitary operations, the two legitimate users can directly transmit the secret messages based on the Bell measurements and some additional classical information. Analysis shows that our scheme has a high capacity as each W state can carry two bits of secret information, and has a high efficiency as the intrinsic efficiency approaches the maximal value 100% and the total efficiency is 33.3%. Moreover, this scheme is unconditionally secure and feasible with present-day technique.
Keywords :
quantum cryptography; quantum entanglement; telecommunication security; Bell measurement; deterministic secure quantum communication scheme; four-qubit W state; quantum cryptography; quantum entanglement; unitary operation; Computational intelligence; Computer security; Cryptography; Information security; Paramagnetic resonance; Protocols; Quantum computing; Quantum entanglement; Quantum mechanics; Software; Deterministic Secure Quantum Communication; Quantum Communication; Quantum Computing; Single-Photon Checking; W State;
Conference_Titel :
Computational Intelligence and Security, 2008. CIS '08. International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-0-7695-3508-1
DOI :
10.1109/CIS.2008.48
