Bonn 2025 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 37: Poster – Quantum Information Technologies (joint session Q/QI)
QI 37.41: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
SiV assisted photonic quantum computing — •Konstantin Beck1, Donika Imeri1,2, Lasse Irrgang1,2, Leonie Eggers1,2, Nick Brinkmann1,2, Sunil Kumar Mahato1,2, Rikhav Shah1, Roman Schnabel1,2, and Ralf Riedinger1,2 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, 22761 Hamburg, Germany — 2The Hamburg Centre for Ultrafast Imaging, 22761 Hamburg, Germany
Silicon vacancy centers in diamond (SiV) have shown great potential for applications in quantum sensing and quantum communication, due to their optically addressable spin transitions and stability against noise. At temperatures below 300 mK, the SiV has a long-lived spin degree of freedom that enables its use as a qubit for quantum information applications. By efficiently interfacing squeezed photons to the SiV, error-resilient optical Gottesman-Kitaev-Preskill (GKP) states can be created, which enable fault-tolerant continuous variable (CV) quantum computation.
We present a conceptual framework for an efficient telecom squeezed light interface for SiV and the subsequent creation of optical GKP cluster states. Key aspects, such as quantum frequency conversion of squeezed states and spin dependent reflection off the SiV as well as the theoretical implications of using optical GKP qubits in 2D-cluster states for CV quantum computing are highlighted.
Keywords: silicon vacancy center; SiV; GKP; squeezed light; continuous variable quantum computing