Date of Award

Spring 5-8-2024

Degree Type


Degree Name

Master of Science in Computer Science


Department of Computer Science

Committee Chair/First Advisor

Dr. Abhishek Parakh

Second Advisor

Dr. Manohar Raavi

Third Advisor

Dr. Kazi Aminul Islam


This thesis focuses on examining the resilience of secure quantum networks to environmental noise. Specifically, we evaluate the effectiveness of two well-known quantum key distribution (QKD) protocols: the Coherent One-Way (COW) protocol and Kak’s Three-Stage protocol (Kak06). The thesis systematically evaluates these protocols in terms of their efficiency, operational feasibility, and resistance to noise, thereby contributing to the progress of secure quantum communications. Using simulations, this study evaluates the protocols in realistic scenarios that include factors such as noise and decoherence. The results illustrate each protocol’s relative benefits and limitations, highlighting the three-stage protocol’s superior security characteristics, resistance to interference, and the COW protocol’s efficient functioning and compatibility with extensive fiber networks.