An integrated diamond nanophotonics platform for quantum-optical networks

TLDR

Integrated quantum nanophotonics exploits quantum mechanics to provide sensitivity advantages over classical devices. The study proposes a viable route to develop an integrated platform for quantum networks. The platform combines silicon‑vacancy color centers with diamond photonic cavities to realize integrated quantum nanophotonics. The authors generate single photons, optically switch cavity light by addressing the color center state, and entangle two color centers within the cavity. Science, this issue p.

Abstract

Integrated quantum nanophotonics Technologies that exploit the rules of quantum mechanics offer a potential advantage over classical devices in terms of sensitivity. Sipahigil et al. combined the quantum optical features of silicon-vacancy color centers with diamond-based photonic cavities to form a platform for integrated quantum nanophotonics (see the Perspective by Hanson). They could thus generate single photons from the color centers, optically switch light in the cavity by addressing the state of the color center, and quantum-mechanically entangle two color centers positioned in the cavity. The work presents a viable route to develop an integrated platform for quantum networks. Science , this issue p. 847 ; see also p. 835