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QI: Fachverband Quanteninformation
QI 22: Quantum Simulation
QI 22.2: Vortrag
Mittwoch, 12. März 2025, 14:45–15:00, HS IV
Thin Nuclear Spin Layers in Diamond for Room-Temperature Quantum Simulation — •Philipp J. Vetter1,2, Christoph Findler1,2,3, Matthias Kost4,2, Antonio Verdú5, Rémi Blinder1,2, Johannes Lang3, Martin B. Plenio4,2, Javier Prior5, and Fedor Jelezko1,2 — 1Institute for Quantum Optics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany — 2Center for Integrated Quantum Science and Technology (IQST), 89081 Ulm, Germany — 3Diatope GmbH, Buchenweg 23, 88444 Ummendorf, Germany — 4Institute of Theoretical Physics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany — 5Departamento de Física, Universidad de Murcia, 30071 Murcia, Spain
We demonstrate the deterministic fabrication of a thin, sub-1 nm nuclear spin layer in diamond, in close proximity to single nitrogen vacancy (NV) centers embedded in a spin-free host environment. The nuclear spin layer is studied via dynamical decoupling sequences to obtain deep insights into the fabrication process. By utilizing the coupling to a nearby NV center, we demonstrate the polarization, readout and coherent control of the nuclear spin layer at room-temperature and investigate its spin properties, confirming a strong dipolar interaction between the nuclear spins. Through periodic driving, this strong interaction gives rise to discrete time-crystalline order, leading to robust, long-living temporal correlations.
Keywords: Nitrogen-Vacancy Center; NV center; Quantum Simulation; Time Crystal; CVD Growth