Bonn 2025 – scientific programme
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QI: Fachverband Quanteninformation
QI 45: Quantum Technologies (Solid State Systems) (joint session Q/QI)
QI 45.3: Talk
Friday, March 14, 2025, 15:00–15:15, HS I
Hybrid Nanophotonic Spin-Photon Interface of Si3N4 Photonics and Silicon Vacancy Centers in Nanodiamonds — •Lukas Antoniuk1, Niklas Lettner1,2, Anna P. Ovvyan3, 5, Daniel Wendland3, Viatcheslav N. Agafonov4, Wolfram H.P. Pernice3, 5, and Alexander Kubanek1, 2 — 1Institute for Quantum Optics, Ulm University, Germany — 2Center for Integrated Quantum Science and Technology (IQst), Ulm University, Germany — 3Institute of Physics and Center for Nanotechnology, University of Münster, Germany — 4Universite F. Rabelais, 37200 Tours, France — 5Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
Color centers in diamond have shown promising internal properties to be harnessed for quantum networks, secure quantum communication and distributed quantum computing. These applications require exchanging quantum information between stationary qubits and flying qubits, thus an efficient interface between them is needed. We base such an interface on negatively charged silicon vacancy centers (SiV−) in nanodiamonds [1] and one-dimensional silicon nitride photonic crystal cavities. We present our progress on this hybrid platform which are access to the SiV− qubit space [2] and control of optical coupling via nanomanipulation [3].
[1] Klotz et al., arXiv:2409.12645 [2] Lettner et al., ACS Photonics, 11(2):696-702 [3] Antoniuk et al., Physical Review Applied, 21(5):054032
Keywords: Hybrid Quantum Photonics; Silicon Vacancy Center; Nanodiamond; Photonic Crystal Cavity; Quantum Network