Single-Shot Readout of a Nuclear Spin in Silicon Carbide
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910904619106304 |
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| author | Lai, Xiao-Yi Fang, Ren-Zhou Li, Tao Su, Ren-Zhu Huang, Jia Li, Hao You, Li-Xing Bao, Xiao-Hui Pan, Jian-Wei |
| author_facet | Lai, Xiao-Yi Fang, Ren-Zhou Li, Tao Su, Ren-Zhu Huang, Jia Li, Hao You, Li-Xing Bao, Xiao-Hui Pan, Jian-Wei |
| contents | Solid-state qubits with a photonic interface is very promising for quantum networks. Color centers in silicon carbide have shown excellent optical and spin coherence, even when integrated with membranes and nano-structures. Additionally, nuclear spins coupled with electron spins can serve as long-lived quantum memories. Pioneering work in previous has realized the initialization of a single nuclear spin and demonstrated its entanglement with an electron spin. In this paper, we report the first realization of single-shot readout for a nuclear spin in SiC. We obtain a deterministic readout fidelity of 98.2% with a measurement duration of 1.13 ms. With a dual-step readout scheme, we obtain a readout fidelity as high as 99.5% with a success efficiency of 89.8%. Our work complements the experimental toolbox of harnessing both electron and nuclear spins in SiC for future quantum networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04470 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Single-Shot Readout of a Nuclear Spin in Silicon Carbide Lai, Xiao-Yi Fang, Ren-Zhou Li, Tao Su, Ren-Zhu Huang, Jia Li, Hao You, Li-Xing Bao, Xiao-Hui Pan, Jian-Wei Quantum Physics Atomic Physics Solid-state qubits with a photonic interface is very promising for quantum networks. Color centers in silicon carbide have shown excellent optical and spin coherence, even when integrated with membranes and nano-structures. Additionally, nuclear spins coupled with electron spins can serve as long-lived quantum memories. Pioneering work in previous has realized the initialization of a single nuclear spin and demonstrated its entanglement with an electron spin. In this paper, we report the first realization of single-shot readout for a nuclear spin in SiC. We obtain a deterministic readout fidelity of 98.2% with a measurement duration of 1.13 ms. With a dual-step readout scheme, we obtain a readout fidelity as high as 99.5% with a success efficiency of 89.8%. Our work complements the experimental toolbox of harnessing both electron and nuclear spins in SiC for future quantum networks. |
| title | Single-Shot Readout of a Nuclear Spin in Silicon Carbide |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2401.04470 |