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Identification and Control of Electron-Nuclear Spin Defects in Diamond

Cooper, Alexandre and Sun, Won Kyu Calvin and Jaskula, Jean-Christophe and Cappellaro, Paola (2020) Identification and Control of Electron-Nuclear Spin Defects in Diamond. Physical Review Letters, 124 (8). Art. No. 083602. ISSN 0031-9007. doi:10.1103/PhysRevLett.124.083602.

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We experimentally demonstrate an approach to scale up quantum devices by harnessing spin defects in the environment of a quantum probe. We follow this approach to identify, locate, and control two electron-nuclear spin defects in the environment of a single nitrogen-vacancy center in diamond. By performing spectroscopy at various orientations of the magnetic field, we extract the unknown parameters of the hyperfine and dipolar interaction tensors, which we use to locate the two spin defects and design control sequences to initialize, manipulate, and readout their quantum state. Finally, we create quantum coherence among the three electron spins, paving the way for the creation of genuine tripartite entanglement. This approach will be useful in assembling multispin quantum registers for applications in quantum sensing and quantum information processing.

Item Type:Article
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URLURL TypeDescription Paper
Cooper, Alexandre0000-0002-8759-9647
Alternate Title:Spectral identification of electron-nuclear spin defects in diamond
Additional Information:© 2020 American Physical Society. Received 2 July 2018; revised manuscript received 4 September 2018; accepted 23 January 2020; published 25 February 2020. This work was in part supported by NSF Grants No. PHY1415345 and No. EECS1702716. A. C. acknowledges financial support by the Fulbright Program and the Natural Sciences and Engineering Research Council of Canada. We are grateful to Chinmay Belthangady and Huiliang Zhang for their experimental support.
Group:Institute for Quantum Information and Matter
Funding AgencyGrant Number
Fulbright FoundationUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Issue or Number:8
Record Number:CaltechAUTHORS:20200226-110309782
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101572
Deposited By: Tony Diaz
Deposited On:26 Feb 2020 19:17
Last Modified:16 Nov 2021 18:03

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