Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide.

ABSTRACT: Quantum systems combining indistinguishable photon generation and spin-based quantum information processing are essential for remote quantum applications and networking. However, identification of suitable systems in scalable platforms remains a challenge. Here, we investigate the silicon vacancy centre in silicon carbide and demonstrate controlled emission of indistinguishable and distinguishable photons via coherent spin manipulation. Using strong off-resonant excitation and collecting zero-phonon line photons, we show a two-photon interference contrast close to 90% in Hong-Ou-Mandel type experiments. Further, we exploit the system's intimate spin-photon relation to spin-control the colour and indistinguishability of consecutively emitted photons. Our results provide a deep insight into

SUBMITTER: Morioka N 

PROVIDER: S-EPMC7239935 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature