Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 38: Poster IV
Q 38.22: Poster
Wednesday, March 13, 2024, 17:00–19:00, KG I Foyer
A Squeezed Light Interface for Silicon Vacancy Centers in Diamond — •Konstantin Beck1, Donika Imeri1,2, Mara Brinkmann1, Timo Eikelmann1, Lasse Jens Irrgang1, Lennart Manthey1, 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. Integrating the properties of SiV centers with the accessibility of a fiber network operating at telecom wavelengths can enable efficient long-distance quantum communication.
We present a conceptual framework of an optical interface where we couple squeezed photons to the silicon vacancy qubit and create Gottesman-Kitaev-Preskill (GKP) states, known for their significance in error resilient quantum communication protocols. We discuss the theoretical aspects of GKP state creation as well as the experimental setup. Key aspects such as the squeezed state preparation, the diamond nanophotonic cavities hosting SiV centers and the overall architecture of the experiment are highlighted.
Keywords: Silicon Vacancy; Quantum Communication; GKP; Entanglement; Squeezed Light