Quantum Key Distribution over Deployed Fiber with Room-Temperature Telecom-Band Single Photon Source

Learn about quantum key distribution implementation using room-temperature single-photon sources in this quantum lunch seminar. Explore how GaN defect-based single-photon sources operating at room temperature can enable BB84 protocol implementation over deployed telecommunication fiber networks. Discover the advantages of time-bin and polarization encoding methods for quantum communication systems. Examine the transition from laboratory free-space quantum key distribution setups to practical deployed fiber infrastructure. Understand the technical challenges and solutions for implementing single-photon source-based quantum cryptography in real-world telecommunication environments without requiring cryogenic cooling systems.