Quantum Private Query Protocol Based on Two Non-Orthogonal States

We propose a loss tolerant quantum private query (QPQ) protocol based on two non-orthogonal states and unambiguous state discrimination (USD) measurement. By analyzing a two-point attack by a third party, we find that our protocol has a stronger ability to resist external attacks than G-protocol and...

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Bibliographic Details
Main Authors: Yan Chang, Shibin Zhang, Guihua Han, Zhiwei Sheng, Lili Yan, Jinxin Xiong
Format: Article
Language:English
Published: MDPI AG 2016-05-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/18/5/163