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Quantum Secure Communication with W States

Jaewoo Joo·Jinhyoung Lee·Jingak Jang·Young-Jai Park
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Abstract

A W state is pair-wisely entangled, belonging to the different class from Greenberger, Horne, and Zeilinger (GHZ) state. We show that the W state enables three variant protocols, that is, quantum key distribution between several parts, quantum secret sharing, and both of them at the same time. It is discussed how one's cheating can be detected in each protocol.

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Jaewoo Joo, Jinhyoung Lee, Jingak Jang, Young-Jai Park. 2002-08-22. Quantum Secure Communication with W States. https://arxiv.org/abs/quant-ph/0204003

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