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Deep three-dimensional solid-state qubit arrays with long-lived spin coherence
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Stephen, Colin J., Green, Ben, Lekhai, Yashna, Weng, L., Hill, P. (Peter), Johnson, S., Frangeskou, Angelo, Diggle, Phil L., Chen, Y.-C., Strain, M. J., Gu, E., Newton, Mark E., Smith, J. M., Salter, P. S. and Morley, Gavin (2019) Deep three-dimensional solid-state qubit arrays with long-lived spin coherence. Physical Review Applied, 12 (6). 064005. doi:10.1103/PhysRevApplied.12.064005
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Official URL: https://doi.org/10.1103/PhysRevApplied.12.064005
Abstract
Nitrogen-vacancy centers (NVCs) in diamond show promise for quantum computing, communication, and sensing. However, the best current method for entangling two NVCs requires that each one is in a separate cryostat, which is not scalable. We show that single NVCs can be laser written 6–15-µm deep inside of a diamond with spin coherence times that are an order of magnitude longer than previous laser-written NVCs and at least as long as naturally occurring NVCs. This depth is suitable for integration with solid immersion lenses or optical cavities and we present depth-dependent T2 measurements. 200 000 of these NVCs would fit into one diamond.
| Item Type: | Journal Article | ||||||||||||||||||
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| Subjects: | Q Science > QE Geology T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Nanophotonics, Diamonds, Annealing of crystals | ||||||||||||||||||
| Journal or Publication Title: | Physical Review Applied | ||||||||||||||||||
| Publisher: | American Physical Society | ||||||||||||||||||
| ISSN: | 2331-7019 | ||||||||||||||||||
| Official Date: | 3 December 2019 | ||||||||||||||||||
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| Volume: | 12 | ||||||||||||||||||
| Number: | 6 | ||||||||||||||||||
| Article Number: | 064005 | ||||||||||||||||||
| DOI: | 10.1103/PhysRevApplied.12.064005 | ||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||
| Access rights to Published version: | Open Access | ||||||||||||||||||
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