Influence of Oceanic Turbulence on the Performance of Underwater Quantum Satellite Communication
- PDF / 2,790,486 Bytes
- 12 Pages / 594 x 792 pts Page_size
- 5 Downloads / 278 Views
Journal of Russian Laser Research, Volume 41, Number 5, September, 2020
INFLUENCE OF OCEANIC TURBULENCE ON THE PERFORMANCE OF UNDERWATER QUANTUM SATELLITE COMMUNICATION Xiuzai Zhang,1,2 Bangyu Liu,1∗ and Xi Xu1 1 School
of Electronics and Information Engineering Nanjing University of Information Science and Technology Nanjing 210044, Jiangsu, China 2 Jiangsu
Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Nanjing University of Information Science and Technology Nanjing 210044, Jiangsu, China ∗ Corresponding
author e-mail:
1483382998 @ qq.com
Abstract Oceanic turbulence is one of the important factors that affect the transmission of quantum optical signals in the seawater medium. However, up to now, none research on the influence of oceanic turbulence on the parameters of quantum communication channel is in progress. In order to fill such vacancies, we simulate in this paper the relationship of oceanic turbulence parameters to the optical wave structure function and the optical wave spatial coherence length to acquire the relationship between the oceanic turbulence intensity and oceanic turbulence parameters. Then, the relationships between the oceanic turbulence parameters and the channel entanglement, the bit-flip channel capacity, and the channel error rate are respectively established and simulated. The simulation results provide a reference for underwater quantum communication with the influence of oceanic turbulence.
Keywords: underwater quantum communication, oceanic turbulence, channel entanglement degree, channel capacity, quantum bit error rate.
1.
Introduction
Quantum communication is an emerging information technology, which takes a single photon as the information carrier and combines the physical principles of the Heisenberg uncertainty relation [1], quantum noncloning, and quantum entanglement [2]. Quantum communication is absolutely secure and confidential; it has the potential to promote the future development of military security, public information security, national defense confidentiality, etc. For the influence of geographical conditions and inherent losses [3], the free-space quantum communication technology has become a hotspot of quantum communication and achieved great results in recent years. Many scholars have conducted in depth research on the feasibility of underwater quantum communication. Li et al. presented the design and implementation of a prototype for the space-to-underwater quantum key distribution (QKD); in addition, they verified the system performance through 0.5 m seawater in the laboratory and successfully implemented the quantum key distribution based on near-coast seawater Manuscript submitted by the authors in English on June 9, 2020. c 2020 Springer Science+Business Media, LLC 1071-2836/20/4105-0509
509
Journal of Russian Laser Research
Volume 41, Number 5, September, 2020
channels [4]. In 2016, Zhao Shicheng conducted numerical experiments and the bit-error-rate analysis on underwater quantum communication, which illustrated t
Data Loading...
