Next Article in Journal
Isometric Signal Processing under Information Geometric Framework
Previous Article in Journal
MVMD-MOMEDA-TEO Model and Its Application in Feature Extraction for Rolling Bearings
Previous Article in Special Issue
On the Thermodynamic Origin of Gravitational Force by Applying Spacetime Entanglement Entropy and the Unruh Effect
Article Menu

Export Article

Open AccessArticle
Entropy 2019, 21(4), 333; https://doi.org/10.3390/e21040333

Simultaneous Classical Communication and Quantum Key Distribution Based on Plug-and-Play Configuration with an Optical Amplifier

1
School of Automation, Central South University, Changsha 410083, China
2
Jiangsu Key Construction Laboratory of IoT Application Technology, Wuxi Taihu University, Wuxi 214064, China
*
Authors to whom correspondence should be addressed.
Received: 28 January 2019 / Revised: 13 March 2019 / Accepted: 26 March 2019 / Published: 27 March 2019
(This article belongs to the Special Issue Relativistic Quantum Information)
  |  
PDF [669 KB, uploaded 30 March 2019]
  |  

Abstract

We propose a simultaneous classical communication and quantum key distribution (SCCQ) protocol based on plug-and-play configuration with an optical amplifier. Such a protocol could be attractive in practice since the single plug-and-play system is taken advantage of for multiple purposes. The plug-and-play scheme waives the necessity of using two independent frequency-locked laser sources to perform coherent detection, thus the phase noise existing in our protocol is small which can be tolerated by the SCCQ protocol. To further improve its capabilities, we place an optical amplifier inside Alice’s apparatus. Simulation results show that the modified protocol can well improve the secret key rate compared with the original protocol whether in asymptotic limit or finite-size regime. View Full-Text
Keywords: simultaneous; classical communication; quantum key distribution; plug-and-play configuration; optical amplifier simultaneous; classical communication; quantum key distribution; plug-and-play configuration; optical amplifier
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

Wu, X.; Wang, Y.; Liao, Q.; Zhong, H.; Guo, Y. Simultaneous Classical Communication and Quantum Key Distribution Based on Plug-and-Play Configuration with an Optical Amplifier. Entropy 2019, 21, 333.

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