High fidelity optical readout of a nuclear spin qubit in Silicon Carbide
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866914707874512896 |
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| author | Hesselmeier, Erik von Berg, Oliver Kuna, Pierre Knolle, Wolfgang Kaiser, Florian Son, Nguyen Tien Ghezellou, Misagh Ul-Hassan, Jawad Vorobyov, Vadim Wrachtrup, Jörg |
| author_facet | Hesselmeier, Erik von Berg, Oliver Kuna, Pierre Knolle, Wolfgang Kaiser, Florian Son, Nguyen Tien Ghezellou, Misagh Ul-Hassan, Jawad Vorobyov, Vadim Wrachtrup, Jörg |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04465 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High fidelity optical readout of a nuclear spin qubit in Silicon Carbide Hesselmeier, Erik von Berg, Oliver Kuna, Pierre Knolle, Wolfgang Kaiser, Florian Son, Nguyen Tien Ghezellou, Misagh Ul-Hassan, Jawad Vorobyov, Vadim Wrachtrup, Jörg Quantum Physics 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. |
| title | High fidelity optical readout of a nuclear spin qubit in Silicon Carbide |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2401.04465 |