2021-03-17 00:00:00

Denis Sukachev University of Calgary

Interfaces between color centers and photons

Quantum networks enable a broad range of practical and fundamental applications spanning distributed quantum computing through sensing and metrology. A key element of such networks is an interface between photons and stationary quantum memories--qubits. I will first present the recent results on coupling the Silicon-Vacancy color centers in diamond to photons via nanophotonic cavities. Next, I will introduce a novel approach based on nano-optomechanics which we use to control electron spins of the Nitrogen-Vacancy centers in diamond with telecom photons at room temperature. The latter method does not involve qubit optical transitions and is insensitive to spectral diffusion. This approach can be applied to a broad range of solid-state qubits and paves the way to hybrid quantum networks.

Speaker's Bio

I received the undergraduate degree in Physics and Mathematics from the Moscow Institute of Physics and Technology and then in 2013 earned PhD in Physics from Lebedev Physical Institute for laser cooling and trapping of thulium atoms. In 2014, I moved to Massachusetts to work as a postdoc in Misha Lukin's group at Harvard University. Our sub-team was focused on study of the silicon-vacancy defects in diamond -- a new promising color center for quantum networking. In 2019, I joined Paul Barclay's lab at the University of Calgary as a staff scientist to develop a new spin-photon interface based on cavity optomechanics.