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

Autor:	Hesselmeier, Erik, von Berg, Oliver, Kuna, Pierre, Knolle, Wolfgang, Kaiser, Florian, Son, Nguyen Tien, Ghezellou, Misagh, Ul-Hassan, Jawad, Vorobyov, Vadim, Wrachtrup, Jörg
Rok vydání:	2024
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	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
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2401.04465 Zobrazit plný text záznamu View this record from Arxiv