Robust Nuclear Spin Polarization via Ground-State Level Anti-Crossing of Boron Vacancy Defects in Hexagonal Boron Nitride
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866908589841448960 |
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| author | Ru, Shihao Jiang, Zhengzhi Liang, Haidong Kenny, Jonathan Cai, Hongbing Lyu, Xiaodan Cernansky, Robert Zhou, Feifei Yang, Yuzhe Watanabe, Kenji Taniguch, Takashi Li, Fuli Seng, Koh Teck Liu, Xiaogang Jelezko, Fedor Bettiol, Andrew A. Gao, Weibo |
| author_facet | Ru, Shihao Jiang, Zhengzhi Liang, Haidong Kenny, Jonathan Cai, Hongbing Lyu, Xiaodan Cernansky, Robert Zhou, Feifei Yang, Yuzhe Watanabe, Kenji Taniguch, Takashi Li, Fuli Seng, Koh Teck Liu, Xiaogang Jelezko, Fedor Bettiol, Andrew A. Gao, Weibo |
| contents | Nuclear spin polarization plays a crucial role in quantum information processing and quantum sensing. In this work, we demonstrate a robust and efficient method for nuclear spin polarization with boron vacancy ($\mathrm{V_B^-}$) defects in hexagonal boron nitride (h-BN) using ground-state level anti-crossing (GSLAC). We show that GSLAC-assisted nuclear polarization can be achieved with significantly lower laser power than excited-state level anti-crossing, making the process experimentally more viable. Furthermore, we have demonstrated direct optical readout of nuclear spins for $\mathrm{V_B^-}$ in h-BN. Our findings suggest that GSLAC is a promising technique for the precise control and manipulation of nuclear spins in $\mathrm{V_B^-}$ defects in h-BN. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_15960 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Robust Nuclear Spin Polarization via Ground-State Level Anti-Crossing of Boron Vacancy Defects in Hexagonal Boron Nitride Ru, Shihao Jiang, Zhengzhi Liang, Haidong Kenny, Jonathan Cai, Hongbing Lyu, Xiaodan Cernansky, Robert Zhou, Feifei Yang, Yuzhe Watanabe, Kenji Taniguch, Takashi Li, Fuli Seng, Koh Teck Liu, Xiaogang Jelezko, Fedor Bettiol, Andrew A. Gao, Weibo Quantum Physics Mesoscale and Nanoscale Physics Nuclear spin polarization plays a crucial role in quantum information processing and quantum sensing. In this work, we demonstrate a robust and efficient method for nuclear spin polarization with boron vacancy ($\mathrm{V_B^-}$) defects in hexagonal boron nitride (h-BN) using ground-state level anti-crossing (GSLAC). We show that GSLAC-assisted nuclear polarization can be achieved with significantly lower laser power than excited-state level anti-crossing, making the process experimentally more viable. Furthermore, we have demonstrated direct optical readout of nuclear spins for $\mathrm{V_B^-}$ in h-BN. Our findings suggest that GSLAC is a promising technique for the precise control and manipulation of nuclear spins in $\mathrm{V_B^-}$ defects in h-BN. |
| title | Robust Nuclear Spin Polarization via Ground-State Level Anti-Crossing of Boron Vacancy Defects in Hexagonal Boron Nitride |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2306.15960 |