Cheat sensitive quantum bit commitment via pre- and post-selected quantum states

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• 作者：Yan-Bing Li (1) (2) (3)
  Qiao-Yan Wen (1)
  Zi-Chen Li (3)
  Su-Juan Qin (1)
  Ya-Tao Yang (3)
  
• 关键词：Cheat sensitive ; Quantum bit commitment ; Pre ; and post ; selected ; EPR pair
• 刊名：Quantum Information Processing
• 出版年：2014
• 出版时间：January 2014
• 年：2014
• 卷：13
• 期：1
• 页码：141-149
• 全文大小：140 KB
• 作者单位：Yan-Bing Li (1) (2) (3)
  Qiao-Yan Wen (1)
  Zi-Chen Li (3)
  Su-Juan Qin (1)
  Ya-Tao Yang (3)
  
  1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China
  2. State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing, 100190, China
  3. Beijing Electronic Science and Technology Institute, Beijing, 100070, China
  
• ISSN：1573-1332

文摘

Cheat sensitive quantum bit commitment is a most important and realizable quantum bit commitment (QBC) protocol. By taking advantage of quantum mechanism, it can achieve higher security than classical bit commitment. In this paper, we propose a QBC schemes based on pre- and post-selected quantum states. The analysis indicates that both of the two participants-cheat strategies will be detected with non-zero probability. And the protocol can be implemented with today’s technology as a long-term quantum memory is not needed.