Quantum-secured communication at Gbps rates

Event Details
Event Date
Location
Speaker Name/Affiliation
Franco Wong / MIT
Seminar Type/Subject
Event Details & Abstracts

Quantum physics has the potential to significantly outperform classical 
techniques in areas such as computing, sensing, and communications. Here 
we show a quantum communication protocol called floodlight quantum key 
distribution that can outperform standard techniques by breaking 
conventional rules of operation, including sending many photons per bit 
duration and use of an amplifier to mitigate channel loss. In a tabletop 
experiment, we have achieved Gbps secret-key rates in a 10-dB-loss 
transmission channel, showing 3 orders of magnitude improvement over 
other quantum protocols. I will discuss its extension to direct secure 
communication that has the potential to solve the key-disclosure problem.