Discovery of ST1 centers in natural diamond

Priyadharshini Balasubramanian; Mathias H. Metsch; Prithvi Reddy; Lachlan J. Rogers; Neil B. Manson; Marcus W. Doherty; Fedor Jelezko

doi:10.1515/nanoph-2019-0148

Discovery of ST1 centers in natural diamond

Priyadharshini Balasubramanian, Mathias H. Metsch, Prithvi Reddy, Lachlan J. Rogers, Neil B. Manson, Marcus W. Doherty^*, Fedor Jelezko

^*Corresponding author for this work

ARC Centre of Excellence for Engineered Quantum Systems (EQuS)

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

8 Citations (Scopus)

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Abstract

The ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the center's optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.

Original language	English
Pages (from-to)	1993-2002
Number of pages	10
Journal	Nanophotonics
Volume	8
Issue number	11
DOIs	https://doi.org/10.1515/nanoph-2019-0148
Publication status	Published - Nov 2019

Bibliographical note

Copyright 2019 Marcus W. Doherty et al., published by De Gruyter, Berlin/Boston. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

ST1
diamond
color center
spectroscopy
electronic structure

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10.1515/nanoph-2019-0148Licence: CC BY

Publisher version (open access)Final published version, 1.09 MBLicence: CC BY

Cite this

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title = "Discovery of ST1 centers in natural diamond",

abstract = "The ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the center's optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.",

keywords = "ST1, diamond, color center, spectroscopy, electronic structure",

author = "Priyadharshini Balasubramanian and Metsch, {Mathias H.} and Prithvi Reddy and Rogers, {Lachlan J.} and Manson, {Neil B.} and Doherty, {Marcus W.} and Fedor Jelezko",

note = "Copyright 2019 Marcus W. Doherty et al., published by De Gruyter, Berlin/Boston. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2019",

month = nov,

doi = "10.1515/nanoph-2019-0148",

language = "English",

volume = "8",

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T1 - Discovery of ST1 centers in natural diamond

AU - Balasubramanian, Priyadharshini

AU - Metsch, Mathias H.

AU - Reddy, Prithvi

AU - Rogers, Lachlan J.

AU - Manson, Neil B.

AU - Doherty, Marcus W.

AU - Jelezko, Fedor

N1 - Copyright 2019 Marcus W. Doherty et al., published by De Gruyter, Berlin/Boston. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2019/11

Y1 - 2019/11

N2 - The ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the center's optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.

AB - The ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the center's optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.

KW - ST1

KW - diamond

KW - color center

KW - spectroscopy

KW - electronic structure

UR - http://purl.org/au-research/grants/arc/DP170103098

UR - http://purl.org/au-research/grants/arc/DE170100169

UR - http://purl.org/au-research/grants/arc/DE170101371

UR - http://purl.org/au-research/grants/arc/CE170100009

UR - http://www.scopus.com/inward/record.url?scp=85070339958&partnerID=8YFLogxK

U2 - 10.1515/nanoph-2019-0148

DO - 10.1515/nanoph-2019-0148

M3 - Article

VL - 8

SP - 1993

EP - 2002

JO - Nanophotonics

JF - Nanophotonics

SN - 2192-8614

IS - 11

ER -

Discovery of ST1 centers in natural diamond

Abstract

Bibliographical note

Keywords

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Designer defects in diamond for solid state quantum networks

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Discovery of ST1 centers in natural diamond

Abstract

Bibliographical note

Keywords

Access to Document

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Designer defects in diamond for solid state quantum networks

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