Secure Communication by Coherence Modulation at the Photon Counting Level

• Other Authors: Boughanmi, Abdellatif (author)
• Format: Others
• Language: English
• Published: Florida Atlantic University
• Subjects: Photonics.; Statistical communication theory.; Optical data processing.; Nanotechnology > Technological innovations.; Quantum communication.
• Online Access: http://purl.flvc.org/fau/fd/FA00004809; http://purl.flvc.org/fau/fd/FA00004809

Secure communication is a topic of great importance. The goal of our research reported here is to develop a scheme of secure communication system using coherence modulation at the photon counting level. When operated at the photon counting level, coherence modulation can provide quantifiably secure binary transmission between two entities, security being based on the nonclonability of photons. The objectives of the research are as follows: Show that interferometer-based coherence modulation can provide physics guaranteed secure binary transmission where each bit is associated with a countable number of photons. Review the operation of conventional high-light-level coherence modulation communication and then show, by means of example, that through the reduction of light intensities to photon-counting levels the system can be made secure. Analyze a particular attack on the system to demonstrate the quantifiability of the scheme’s security. Implement a version of the BB84 quantum key distribution protocol by slightly modifying our scheme in order to achieve a greater security. Identify a variety of issues related to hardware and the challenges of implementing our scheme in the real world. === Includes bibliography. === Dissertation (Ph.D.)--Florida Atlantic University, 2017. === FAU Electronic Theses and Dissertations Collection