Generation of narrowband quantum emitters in hBN with optically addressable spins
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913666637496320 |
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| author | Whitefield, Benjamin Zeng, Helen Zhi Jie Liddle-Wesolowski, James Robertson, Islay O. Ivády, Viktor Watanabe, Kenji Taniguchi, Takashi Toth, Milos Tetienne, Jean-Philippe Aharonovich, Igor Kianinia, Mehran |
| author_facet | Whitefield, Benjamin Zeng, Helen Zhi Jie Liddle-Wesolowski, James Robertson, Islay O. Ivády, Viktor Watanabe, Kenji Taniguchi, Takashi Toth, Milos Tetienne, Jean-Philippe Aharonovich, Igor Kianinia, Mehran |
| contents | Electron spins coupled with optical transitions in solids stand out as a promising platform for developing spin-based quantum technologies. Recently, hexagonal boron nitride (hBN) - a layered Van der Waals (vdW) crystal, has emerged as a promising host for optically addressable spin systems. However, to date, on-demand generation of isolated single photon emitters with pre-determined spin transitions has remained elusive. Here, we report on a single step, thermal processing of hBN flakes that produces high density, narrowband, quantum emitters with optically active spin transitions. Remarkably, over 25% of the emitters exhibit a clear signature of an optical spin readout at room temperature, surpassing all previously reported results by an order of magnitude. The generated spin defect complexes exhibit both S = 1 and S = 1/2 transitions, which are explained by charge transfer from strongly to weakly coupled spin pairs. Our work advances the understanding of spin complexes in hBN and paves the way for single spin - photon interfaces in layered vdW materials with applications in quantum sensing and information processing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_15341 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Generation of narrowband quantum emitters in hBN with optically addressable spins Whitefield, Benjamin Zeng, Helen Zhi Jie Liddle-Wesolowski, James Robertson, Islay O. Ivády, Viktor Watanabe, Kenji Taniguchi, Takashi Toth, Milos Tetienne, Jean-Philippe Aharonovich, Igor Kianinia, Mehran Quantum Physics Electron spins coupled with optical transitions in solids stand out as a promising platform for developing spin-based quantum technologies. Recently, hexagonal boron nitride (hBN) - a layered Van der Waals (vdW) crystal, has emerged as a promising host for optically addressable spin systems. However, to date, on-demand generation of isolated single photon emitters with pre-determined spin transitions has remained elusive. Here, we report on a single step, thermal processing of hBN flakes that produces high density, narrowband, quantum emitters with optically active spin transitions. Remarkably, over 25% of the emitters exhibit a clear signature of an optical spin readout at room temperature, surpassing all previously reported results by an order of magnitude. The generated spin defect complexes exhibit both S = 1 and S = 1/2 transitions, which are explained by charge transfer from strongly to weakly coupled spin pairs. Our work advances the understanding of spin complexes in hBN and paves the way for single spin - photon interfaces in layered vdW materials with applications in quantum sensing and information processing. |
| title | Generation of narrowband quantum emitters in hBN with optically addressable spins |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2501.15341 |