Next Article in Journal
Gudder’s Theorem and the Born Rule
Next Article in Special Issue
Enhancing of Self-Referenced Continuous-Variable Quantum Key Distribution with Virtual Photon Subtraction
Previous Article in Journal
A Quantal Response Statistical Equilibrium Model of Induced Technical Change in an Interactive Factor Market: Firm-Level Evidence in the EU Economies
Previous Article in Special Issue
Tsirelson’s Bound Prohibits Communication through a Disconnected Channel
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Entropy 2018, 20(3), 157; https://doi.org/10.3390/e20030157

Security Analysis of Unidimensional Continuous-Variable Quantum Key Distribution Using Uncertainty Relations

1
,
1,2,* and 1,2,*
1
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
2
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
*
Authors to whom correspondence should be addressed.
Received: 30 January 2018 / Revised: 22 February 2018 / Accepted: 27 February 2018 / Published: 1 March 2018
(This article belongs to the Special Issue Entropy in Foundations of Quantum Physics)
Full-Text   |   PDF [6268 KB, uploaded 2 March 2018]   |  

Abstract

We study the equivalence between the entanglement-based scheme and prepare-and-measure scheme of unidimensional (UD) continuous-variable quantum key distribution protocol. Based on this equivalence, the physicality and security of the UD coherent-state protocols in the ideal detection and realistic detection conditions are investigated using the Heisenberg uncertainty relation, respectively. We also present a method to increase both the secret key rates and maximal transmission distances of the UD coherent-state protocol by adding an optimal noise to the reconciliation side. It is expected that our analysis will aid in the practical applications of the UD protocol. View Full-Text
Keywords: continuous-variable quantum key distribution; unidimensional modulation; Heisenberg uncertainty relations continuous-variable quantum key distribution; unidimensional modulation; Heisenberg uncertainty relations
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, P.; Wang, X.; Li, Y. Security Analysis of Unidimensional Continuous-Variable Quantum Key Distribution Using Uncertainty Relations. Entropy 2018, 20, 157.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top