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Tomographic Approach in Three-Orthogonal-Basis Quantum Key Distribution

At present, there is an increasing awareness of some three-orthogonal-basis quantum key distribution protocols, such as, the reference-frame-independent (RFI) protocol and the six-state protocol. For secure key rate estimations of these protocols, there are two methods: one is the conventional appro... Full description

Journal Title: Communications in Theoretical Physics September 1, 2015, Vol.64(3), pp.295-298
Main Author: Liang, Wen-Ye
Other Authors: Wen, Hao , Yin, Zhen-Qiang , Chen, Hua , Li, Hong-Wei , Chen, Wei , Han, Zheng-Fu
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0253-6102 ; E-ISSN: 1572-9494
Link: http://search.proquest.com/docview/1793289014/?pq-origsite=primo
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title: Tomographic Approach in Three-Orthogonal-Basis Quantum Key Distribution
format: Article
creator:
  • Liang, Wen-Ye
  • Wen, Hao
  • Yin, Zhen-Qiang
  • Chen, Hua
  • Li, Hong-Wei
  • Chen, Wei
  • Han, Zheng-Fu
subjects:
  • Channels
  • Estimates
  • Equivalence
  • Quantum Cryptography
  • Representations
  • Tomography
  • Theoretical Physics
  • Joints
  • Mathematics of Physics (General) (So)
  • Physics (General) (Ah)
  • Quantum Cryptography
  • Quantum Key Distribution
  • Reference Frame Independent
  • Tomographic
ispartof: Communications in Theoretical Physics, September 1, 2015, Vol.64(3), pp.295-298
description: At present, there is an increasing awareness of some three-orthogonal-basis quantum key distribution protocols, such as, the reference-frame-independent (RFI) protocol and the six-state protocol. For secure key rate estimations of these protocols, there are two methods: one is the conventional approach, and another is the tomographic approach. However, a comparison between these two methods has not been given yet. In this work, with the general model of rotation channel, we estimate the key rate using conventional and tomographic methods respectively. Results show that conventional estimation approach in RFI protocol is equivalent to tomographic approach only in the case of that one of three orthogonal bases is always aligned. In other cases, tomographic approach performs much better than the respective conventional approaches of the RFI protocol and the six-state protocol. Furthermore, based on the experimental data, we illustrate the deep connections between tomography and conventional RFI approach representations.
language: eng
source:
identifier: ISSN: 0253-6102 ; E-ISSN: 1572-9494
fulltext: no_fulltext
issn:
  • 02536102
  • 0253-6102
  • 15729494
  • 1572-9494
url: Link


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identifierISSN: 0253-6102 ; E-ISSN: 1572-9494
subjectChannels ; Estimates ; Equivalence ; Quantum Cryptography ; Representations ; Tomography ; Theoretical Physics ; Joints ; Mathematics of Physics (General) (So) ; Physics (General) (Ah) ; Quantum Cryptography ; Quantum Key Distribution ; Reference Frame Independent ; Tomographic
descriptionAt present, there is an increasing awareness of some three-orthogonal-basis quantum key distribution protocols, such as, the reference-frame-independent (RFI) protocol and the six-state protocol. For secure key rate estimations of these protocols, there are two methods: one is the conventional approach, and another is the tomographic approach. However, a comparison between these two methods has not been given yet. In this work, with the general model of rotation channel, we estimate the key rate using conventional and tomographic methods respectively. Results show that conventional estimation approach in RFI protocol is equivalent to tomographic approach only in the case of that one of three orthogonal bases is always aligned. In other cases, tomographic approach performs much better than the respective conventional approaches of the RFI protocol and the six-state protocol. Furthermore, based on the experimental data, we illustrate the deep connections between tomography and conventional RFI approach representations.
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titleTomographic Approach in Three-Orthogonal-Basis Quantum Key Distribution
descriptionAt present, there is an increasing awareness of some three-orthogonal-basis quantum key distribution protocols, such as, the reference-frame-independent (RFI) protocol and the six-state protocol. For secure key rate estimations of these protocols, there are two methods: one is the conventional approach, and another is the tomographic approach. However, a comparison between these two methods has not been given yet. In this work, with the general model of rotation channel, we estimate the key rate using conventional and tomographic methods respectively. Results show that conventional estimation approach in RFI protocol is equivalent to tomographic approach only in the case of that one of three orthogonal bases is always aligned. In other cases, tomographic approach performs much better than the respective conventional approaches of the RFI protocol and the six-state protocol. Furthermore, based on the experimental data, we illustrate the deep connections between tomography and conventional RFI approach representations.
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abstractAt present, there is an increasing awareness of some three-orthogonal-basis quantum key distribution protocols, such as, the reference-frame-independent (RFI) protocol and the six-state protocol. For secure key rate estimations of these protocols, there are two methods: one is the conventional approach, and another is the tomographic approach. However, a comparison between these two methods has not been given yet. In this work, with the general model of rotation channel, we estimate the key rate using conventional and tomographic methods respectively. Results show that conventional estimation approach in RFI protocol is equivalent to tomographic approach only in the case of that one of three orthogonal bases is always aligned. In other cases, tomographic approach performs much better than the respective conventional approaches of the RFI protocol and the six-state protocol. Furthermore, based on the experimental data, we illustrate the deep connections between tomography and conventional RFI approach representations.
urlhttp://search.proquest.com/docview/1793289014/
doi10.1088/0253-6102/64/3/295
date2015-09-01