High fidelity optical readout of a nuclear spin qubit in Silicon Carbide

التفاصيل البيبلوغرافية
العنوان: High fidelity optical readout of a nuclear spin qubit in Silicon Carbide
المؤلفون: Hesselmeier, Erik, von Berg, Oliver, Kuna, Pierre, Knolle, Wolfgang, Kaiser, Florian, Son, Nguyen Tien, Ghezellou, Misagh, Ul-Hassan, Jawad, Vorobyov, Vadim, Wrachtrup, Jörg
سنة النشر: 2024
المجموعة: Quantum Physics
مصطلحات موضوعية: Quantum Physics
الوصف: Quantum state readout is a key requirement for a successful qubit platform. In this work we demonstrate a high fidelity quantum state readout of a V2 center nuclear spin based on a repetitive readout technique. We demonstrate up to 99.5$\,\%$ readout fidelity and 99$\,\%$ for state preparation. Using this efficient readout we initialise the nuclear spin by measurement and demonstrate its Rabi and Ramsey nutation. Finally, we use the nuclear spin as a long lived memory for quantum sensing application of weakly coupled diatomic nuclear spin bath.
Comment: 9 pages
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2401.04465
رقم الأكسشن: edsarx.2401.04465
قاعدة البيانات: arXiv