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

Volume

1

fYear

2008

fDate

13-17 Dec. 2008

Firstpage

52

Lastpage

55

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Security, 2008. CIS '08. International Conference on

Conference_Location

Suzhou

Print_ISBN

978-0-7695-3508-1

Type

conf

DOI

10.1109/CIS.2008.48

Filename

4724613