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

Morioka N, Babin C, Nagy R, Gediz I, Hesselmeier E, Liu D, Joliffe M, Niethammer M, Dasari D, Vorobyov V, Kolesov R, Stoehr R, Ul-Hassan J, Nguyen Tien Son , Ohshima T, Udvarhelyi P, Thiering G, Gali A, Wrachtrup J, Kaiser F (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 11

Article Number: 2516

Journal Issue: 1

DOI: 10.1038/s41467-020-16330-5

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 the system’s spin-phonon-photon physics and underline the potential of the industrially compatible silicon carbide platform for measurement-based entanglement distribution and photonic cluster state generation. Additional coupling to quantum registers based on individual nuclear spins would further allow for high-level network-relevant quantum information processing, such as error correction and entanglement purification.

Authors with CRIS profile

Roland Nagy

Additional Organisation(s)

Lehrstuhl für Elektronische Bauelemente

Involved external institutions

Universität Stuttgart DE Germany (DE) Eötvös Loránd University / Eötvös Loránd Tudományegyetem (ELTE) HU Hungary (HU) Linköping University SE Sweden (SE) National Institutes for Quantum and Radiological Science and Technology JP Japan (JP) Wigner Research Centre for Physics / Wigner Fizikai Kutatóközpont HU Hungary (HU)

How to cite

APA:

Morioka, N., Babin, C., Nagy, R., Gediz, I., Hesselmeier, E., Liu, D.,... Kaiser, F. (2020). Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide. Nature Communications, 11(1). https://doi.org/10.1038/s41467-020-16330-5

MLA:

Morioka, Naoya, et al. "Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide." Nature Communications 11.1 (2020).

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