Multi-user quantum network system and quantum communication using χ-type entangled states

Chang Ho Hong; Jin O. Heo; Jong In Lim; Hyung Jin Yang

doi:10.3938/jkps.61.1

Multi-user quantum network system and quantum communication using χ-type entangled states

Chang Ho Hong, Jin O. Heo, Jong In Lim, Hyung Jin Yang

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A multi-user quantum direct communication network system for N users utilizing χ-type entangled states is proposed. The network system is composed of a communication center, N users, and N quantum lines linking the center and the N users. There is no quantum line among users; therefore, only N quantum lines are necessary for the communication between users. Using one χ-type entangled state, in this protocol, we are able to send two bits of information through direct communication and, at the same time, share two bits of quantum keys. The security of the protocol will be analyzed.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	61
Issue number	1
DOIs	https://doi.org/10.3938/jkps.61.1
Publication status	Published - 2012 Jul

Bibliographical note

Funding Information:
This research was supported by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program (NIPA-2012-H0301-12-3007) supervised by the NIPA (National IT Industry Promotion Agency).

Keywords

Quantum communication network
Quantum direct communication
Quantum key distribution
χ-type entangled state

ASJC Scopus subject areas

General Physics and Astronomy

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10.3938/jkps.61.1

Cite this

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title = "Multi-user quantum network system and quantum communication using χ-type entangled states",

abstract = "A multi-user quantum direct communication network system for N users utilizing χ-type entangled states is proposed. The network system is composed of a communication center, N users, and N quantum lines linking the center and the N users. There is no quantum line among users; therefore, only N quantum lines are necessary for the communication between users. Using one χ-type entangled state, in this protocol, we are able to send two bits of information through direct communication and, at the same time, share two bits of quantum keys. The security of the protocol will be analyzed.",

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note = "Funding Information: This research was supported by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program (NIPA-2012-H0301-12-3007) supervised by the NIPA (National IT Industry Promotion Agency).",

year = "2012",

month = jul,

doi = "10.3938/jkps.61.1",

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AU - Heo, Jin O.

AU - Lim, Jong In

AU - Yang, Hyung Jin

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PY - 2012/7

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N2 - A multi-user quantum direct communication network system for N users utilizing χ-type entangled states is proposed. The network system is composed of a communication center, N users, and N quantum lines linking the center and the N users. There is no quantum line among users; therefore, only N quantum lines are necessary for the communication between users. Using one χ-type entangled state, in this protocol, we are able to send two bits of information through direct communication and, at the same time, share two bits of quantum keys. The security of the protocol will be analyzed.

AB - A multi-user quantum direct communication network system for N users utilizing χ-type entangled states is proposed. The network system is composed of a communication center, N users, and N quantum lines linking the center and the N users. There is no quantum line among users; therefore, only N quantum lines are necessary for the communication between users. Using one χ-type entangled state, in this protocol, we are able to send two bits of information through direct communication and, at the same time, share two bits of quantum keys. The security of the protocol will be analyzed.

KW - Quantum communication network

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KW - Quantum key distribution

KW - χ-type entangled state

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Multi-user quantum network system and quantum communication using χ-type entangled states

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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