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Quantum secure direct communication network with hyperentanglement |
| Chang Ho Honga b, Jino Heoa b, Jong In Lima b, Hyung Jin Yanga b c d |
a Graduate School of Information Management and Security, Korea University, Seoul 136-701, Korea;
b Center for Information Security Technologies (CIST), Korea University, Seoul 136-701, Korea;
c Department of Physics, Korea University, Yeongi 339-700, Korea;
d Graduate School of Information Security (GSIS), Korea University, Seoul 136-701, Korea |
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Abstract We propose a quantum secure direct communication protocol with entanglement swapping and hyperentanglement. Any two users, Alice and Bob, can communicate with each other in a quantum network, even though there is no direct quantum channel between them. The trust center, Trent, who provides a quantum channel to link them by performing entanglement swapping, cannot eavesdrop on their communication. This protocol provides a high channel capacity because it uses hyperentanglement, which can be generated using a beta barium borate crystal.
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Received: 05 December 2013
Revised: 08 April 2014
Accepted manuscript online:
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PACS:
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03.67.Hk
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(Quantum communication)
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03.67.Ac
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(Quantum algorithms, protocols, and simulations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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| Fund: Project supported by the Ministry of Knowledge Economy, Korea, under the Information Technology Research Center (ITRC) support program (NIPA-2013-H0301-13-3007) supervised by the National IT Industry Promotion Agency, and the Research Foundation of Korea University. |
Corresponding Authors:
Hyung Jin Yang
E-mail: yangh@korea.ac.kr
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Cite this article:
Chang Ho Hong, Jino Heo, Jong In Lim, Hyung Jin Yang Quantum secure direct communication network with hyperentanglement 2014 Chin. Phys. B 23 090309
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