Influence of the experimental parameters of the optical fiber in the Quantum Key Distribution, the protocol BB84

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2018
• Main Authors: Bouchoucha, L., Berrah, S., Sellami, M.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2018
• Subjects: Optoelectronics and optoelectronic devices
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/215142
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Influence of the experimental parameters of the optical fiber in the Quantum Key Distribution, the protocol BB84 / L. Bouchoucha, S. Berrah, M. Sellami // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2018. — Т. 21, № 1. — С. 73-79. — Бібліогр.: 12 назв. — англ.

In this work, we represent the principle of quantum cryptography (QC) that is based on fundamental laws of quantum physics. QC or Quantum Key Distribution (QKD) uses various protocols to exchange a secret key between two communicating parties. This research paper focuses on and examines the quantum key distribution by using the protocol BB84 in the case of encoding on the single-photon polarization, and shows the influence of optical components' parameters on the quantum key distribution. We also introduce Quantum Bit Error Rate (QBER) to better interpret our results and show its relationship with the intrusion of the eavesdropper, called Eve, on the optical channel to exploit these vulnerabilities.