Multi-user quantum network system and quantum communication using chi-type entangled states
- Authors
- Hong, Chang Ho; Heo, Jin O.; Lim, Jong In; Yang, Hyung Jin
- Issue Date
- 7월-2012
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Quantum communication network; Quantum direct communication; Quantum key distribution; chi-type entangled state
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.61, no.1, pp.1 - 5
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 61
- Number
- 1
- Start Page
- 1
- End Page
- 5
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/107959
- DOI
- 10.3938/jkps.61.1
- ISSN
- 0374-4884
- Abstract
- A multi-user quantum direct communication network system for N users utilizing chi-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 chi-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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Collections - College of Science and Technology > Semiconductor Physics in Division of Display and Semiconductor Physics > 1. Journal Articles
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