Tue March 2, 2021 4:00 pm
CUA Virtual Seminar – Prospects of Quantum Communication using Silicon-Vacancy Centers in Diamond
Location:Zoom
The silicon-vacancy center (SiV) in diamond is a promising candidate for scalable quantum information processing, offering long-lived spin memories, high-fidelity local operations, and optical connectivity for long range entanglement. One near-term application of quantum networks of SiVs is device-independent quantum key distribution (DI-QKD). DI-QKD allows two parties that share quantum entangled spins to communicate with unconditional security against eavesdroppers.
Over the past two years, we have developed many of the building blocks of a quantum network that would allow DI-QKD. In this talk, I will summarize our work on using nuclear spins as long-lived quantum memories, performing entangling gates between SiVs and interfacing SiVs with photons. I will also talk about our ongoing collaboration with MIT and Lincoln Labs to build a Cambridge-wide quantum network.