Spin Dynamics of a Solid-State Qubit in Proximity to a Superconductor

Richard Monge; Tom Delord; Nicholas V. Proscia; Zav Shotan; Harishankar Jayakumar; Jacob Henshaw; Pablo R. Zangara; Artur Lozovoi; Daniela Pagliero; Pablo D. Esquinazi; Toshu An; Inti Sodemann; Vinod M. Menon; Carlos A. Meriles

doi:10.1021/acs.nanolett.2c03250

Spin Dynamics of a Solid-State Qubit in Proximity to a Superconductor

Richard Monge, Tom Delord, Nicholas V. Proscia, Zav Shotan, Harishankar Jayakumar, Jacob Henshaw, Pablo R. Zangara, Artur Lozovoi, Daniela Pagliero, Pablo D. Esquinazi, Toshu An, Inti Sodemann, Vinod M. Menon, Carlos A. Meriles

Neuroscience

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A broad effort is underway to understand and harness the interaction between superconductors and spin-active color centers with an eye on hybrid quantum devices and novel imaging modalities of superconducting materials. Most work, however, overlooks the interplay between either system and the environment created by the color center host. Here we use a diamond scanning probe to investigate the spin dynamics of a single nitrogen-vacancy (NV) center proximal to a superconducting film. We find that the presence of the superconductor increases the NV spin coherence lifetime, a phenomenon we tentatively rationalize as a change in the electric noise due to a superconductor-induced redistribution of charge carriers near induced redistribution of charge carriers near the NV. We then build on these findings to demonstrate transverse-relaxation-time-weighted imaging of the superconductor film. These results shed light on the dynamics governing the spin coherence of shallow NVs, and promise opportunities for new forms of noise spectroscopy and imaging of superconductors.

Original language	English (US)
Pages (from-to)	422-428
Number of pages	7
Journal	Nano letters
Volume	23
Issue number	2
DOIs	https://doi.org/10.1021/acs.nanolett.2c03250
State	Published - Jan 25 2023

Bibliographical note

Funding Information:
The authors acknowledge useful discussions with P. Ghaemi and T. Brick. R.M. acknowledges support from the National Science Foundation through grant NSF-1914945. Work by T.D and V.M.M. was supported by the National Science Foundation under grant NSF-QIITAQS-1936351. Work by N.P., Z.S., H.J., J.H., and P.R.Z. was supported by the National Science Foundation under grant NSF-1726573. Work by A.L., D.P., and C.A.M was supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-design Center for Quantum Advantage (C2QA) under contract number DE-SC0012704. All authors acknowledge access to the facilities and research infrastructure of the NSF CREST IDEALS, grant number NSF-HRD-1547830.

Publisher Copyright:
© 2023 American Chemical Society.

Keywords

Diamond
electric and magnetic noise
nitrogen-vacancy centers
spin coherence times
superconductor

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10.1021/acs.nanolett.2c03250

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title = "Spin Dynamics of a Solid-State Qubit in Proximity to a Superconductor",

abstract = "A broad effort is underway to understand and harness the interaction between superconductors and spin-active color centers with an eye on hybrid quantum devices and novel imaging modalities of superconducting materials. Most work, however, overlooks the interplay between either system and the environment created by the color center host. Here we use a diamond scanning probe to investigate the spin dynamics of a single nitrogen-vacancy (NV) center proximal to a superconducting film. We find that the presence of the superconductor increases the NV spin coherence lifetime, a phenomenon we tentatively rationalize as a change in the electric noise due to a superconductor-induced redistribution of charge carriers near induced redistribution of charge carriers near the NV. We then build on these findings to demonstrate transverse-relaxation-time-weighted imaging of the superconductor film. These results shed light on the dynamics governing the spin coherence of shallow NVs, and promise opportunities for new forms of noise spectroscopy and imaging of superconductors.",

keywords = "Diamond, electric and magnetic noise, nitrogen-vacancy centers, spin coherence times, superconductor",

author = "Richard Monge and Tom Delord and Proscia, {Nicholas V.} and Zav Shotan and Harishankar Jayakumar and Jacob Henshaw and Zangara, {Pablo R.} and Artur Lozovoi and Daniela Pagliero and Esquinazi, {Pablo D.} and Toshu An and Inti Sodemann and Menon, {Vinod M.} and Meriles, {Carlos A.}",

note = "Funding Information: The authors acknowledge useful discussions with P. Ghaemi and T. Brick. R.M. acknowledges support from the National Science Foundation through grant NSF-1914945. Work by T.D and V.M.M. was supported by the National Science Foundation under grant NSF-QIITAQS-1936351. Work by N.P., Z.S., H.J., J.H., and P.R.Z. was supported by the National Science Foundation under grant NSF-1726573. Work by A.L., D.P., and C.A.M was supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-design Center for Quantum Advantage (C2QA) under contract number DE-SC0012704. All authors acknowledge access to the facilities and research infrastructure of the NSF CREST IDEALS, grant number NSF-HRD-1547830. Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

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doi = "10.1021/acs.nanolett.2c03250",

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AU - Monge, Richard

AU - Delord, Tom

AU - Proscia, Nicholas V.

AU - Shotan, Zav

AU - Jayakumar, Harishankar

AU - Henshaw, Jacob

AU - Zangara, Pablo R.

AU - Lozovoi, Artur

AU - Pagliero, Daniela

AU - Esquinazi, Pablo D.

AU - An, Toshu

AU - Sodemann, Inti

AU - Menon, Vinod M.

AU - Meriles, Carlos A.

N1 - Funding Information: The authors acknowledge useful discussions with P. Ghaemi and T. Brick. R.M. acknowledges support from the National Science Foundation through grant NSF-1914945. Work by T.D and V.M.M. was supported by the National Science Foundation under grant NSF-QIITAQS-1936351. Work by N.P., Z.S., H.J., J.H., and P.R.Z. was supported by the National Science Foundation under grant NSF-1726573. Work by A.L., D.P., and C.A.M was supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-design Center for Quantum Advantage (C2QA) under contract number DE-SC0012704. All authors acknowledge access to the facilities and research infrastructure of the NSF CREST IDEALS, grant number NSF-HRD-1547830. Publisher Copyright: © 2023 American Chemical Society.

PY - 2023/1/25

Y1 - 2023/1/25

N2 - A broad effort is underway to understand and harness the interaction between superconductors and spin-active color centers with an eye on hybrid quantum devices and novel imaging modalities of superconducting materials. Most work, however, overlooks the interplay between either system and the environment created by the color center host. Here we use a diamond scanning probe to investigate the spin dynamics of a single nitrogen-vacancy (NV) center proximal to a superconducting film. We find that the presence of the superconductor increases the NV spin coherence lifetime, a phenomenon we tentatively rationalize as a change in the electric noise due to a superconductor-induced redistribution of charge carriers near induced redistribution of charge carriers near the NV. We then build on these findings to demonstrate transverse-relaxation-time-weighted imaging of the superconductor film. These results shed light on the dynamics governing the spin coherence of shallow NVs, and promise opportunities for new forms of noise spectroscopy and imaging of superconductors.

AB - A broad effort is underway to understand and harness the interaction between superconductors and spin-active color centers with an eye on hybrid quantum devices and novel imaging modalities of superconducting materials. Most work, however, overlooks the interplay between either system and the environment created by the color center host. Here we use a diamond scanning probe to investigate the spin dynamics of a single nitrogen-vacancy (NV) center proximal to a superconducting film. We find that the presence of the superconductor increases the NV spin coherence lifetime, a phenomenon we tentatively rationalize as a change in the electric noise due to a superconductor-induced redistribution of charge carriers near induced redistribution of charge carriers near the NV. We then build on these findings to demonstrate transverse-relaxation-time-weighted imaging of the superconductor film. These results shed light on the dynamics governing the spin coherence of shallow NVs, and promise opportunities for new forms of noise spectroscopy and imaging of superconductors.

KW - Diamond

KW - electric and magnetic noise

KW - nitrogen-vacancy centers

KW - spin coherence times

KW - superconductor

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EP - 428

JO - Nano letters

JF - Nano letters

IS - 2

ER -

Spin Dynamics of a Solid-State Qubit in Proximity to a Superconductor

Abstract

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Keywords

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