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Security of modified Ping-Pong protocol in noisy and lossy channel

The "Ping-Pong" (PP) protocol is a two-way quantum key protocol based on entanglement. In this protocol, Bob prepares one maximally entangled pair of qubits, and sends one qubit to Alice. Then, Alice performs some necessary operations on this qubit and sends it back to Bob. Although this protocol wa... Full description

Journal Title: Scientific Reports (Nature Publisher Group) May 2014, p.4936
Main Author: Han, Yun-Guang
Other Authors: Yin, Zhen-Qiang , Li, Hong-Wei , Chen, Wei , Wang, Shuang , Guo, Guang-Can , Han, Zheng-Fu
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 20452322 ; DOI: 10.1038/srep04936
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recordid: proquest1898009003
title: Security of modified Ping-Pong protocol in noisy and lossy channel
format: Article
creator:
  • Han, Yun-Guang
  • Yin, Zhen-Qiang
  • Li, Hong-Wei
  • Chen, Wei
  • Wang, Shuang
  • Guo, Guang-Can
  • Han, Zheng-Fu
subjects:
  • Quantum Physics
ispartof: Scientific Reports (Nature Publisher Group), May 2014, p.4936
description: The "Ping-Pong" (PP) protocol is a two-way quantum key protocol based on entanglement. In this protocol, Bob prepares one maximally entangled pair of qubits, and sends one qubit to Alice. Then, Alice performs some necessary operations on this qubit and sends it back to Bob. Although this protocol was proposed in 2002, its security in the noisy and lossy channel has not been proven. In this report, we add a simple and experimentally feasible modification to the original PP protocol, and prove the security of this modified PP protocol against collective attacks when the noisy and lossy channel is taken into account. Simulation results show that our protocol is practical.
language: eng
source:
identifier: E-ISSN: 20452322 ; DOI: 10.1038/srep04936
fulltext: fulltext_linktorsrc
issn:
  • 20452322
  • 2045-2322
url: Link


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identifierE-ISSN: 20452322 ; DOI: 10.1038/srep04936
descriptionThe "Ping-Pong" (PP) protocol is a two-way quantum key protocol based on entanglement. In this protocol, Bob prepares one maximally entangled pair of qubits, and sends one qubit to Alice. Then, Alice performs some necessary operations on this qubit and sends it back to Bob. Although this protocol was proposed in 2002, its security in the noisy and lossy channel has not been proven. In this report, we add a simple and experimentally feasible modification to the original PP protocol, and prove the security of this modified PP protocol against collective attacks when the noisy and lossy channel is taken into account. Simulation results show that our protocol is practical.
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abstractThe "Ping-Pong" (PP) protocol is a two-way quantum key protocol based on entanglement. In this protocol, Bob prepares one maximally entangled pair of qubits, and sends one qubit to Alice. Then, Alice performs some necessary operations on this qubit and sends it back to Bob. Although this protocol was proposed in 2002, its security in the noisy and lossy channel has not been proven. In this report, we add a simple and experimentally feasible modification to the original PP protocol, and prove the security of this modified PP protocol against collective attacks when the noisy and lossy channel is taken into account. Simulation results show that our protocol is practical.
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