Nanophotonic Quantum Registers based on Silicon Vacancy Centers in Diamond

The development of scalable quantum technologies requires robust and well controlled quantum systems. Integrated solid-state devices are particularly promising because lithographically defined systems offer a route toward mass production. Recent progress in diamond nanofabrication has opened the door to unprecedented control of an optically accessible solid-state quantum memory, the silicon vacancy center in diamond. Integration of this point defect into a nanophotonic cavity combined with efficient photon detection recently enabled a proof-of-principle demonstration of memory enhanced quantum communication. In this talk, I will discuss how interfacing with nearby nuclear spins as well as improved device design and fabrication continue to push this system’s capabilities as a platform for foundational demonstrations of memory based quantum communication.