Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond

Abstract Defect quantum bits (qubits) constitute an important emerging technology. However, it is necessary to explore new types of defects to enable large-scale applications. In this article, we examine the potential of magnesium-vacancy (MgV) in diamond to operate as a qubit by computing the key e...

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Autores principales:	Anton Pershin, Gergely Barcza, Örs Legeza, Adam Gali
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/1e6711d3cd9441e1962b21706eb5a184
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spelling	oai:doaj.org-article:1e6711d3cd9441e1962b21706eb5a1842021-12-02T17:13:28ZHighly tunable magneto-optical response from magnesium-vacancy color centers in diamond10.1038/s41534-021-00439-62056-6387https://doaj.org/article/1e6711d3cd9441e1962b21706eb5a1842021-06-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00439-6https://doaj.org/toc/2056-6387Abstract Defect quantum bits (qubits) constitute an important emerging technology. However, it is necessary to explore new types of defects to enable large-scale applications. In this article, we examine the potential of magnesium-vacancy (MgV) in diamond to operate as a qubit by computing the key electronic- and spin properties with robust theoretical methods. We find that the electronic structure of MgV permits the coexistence of two loosely separated spin-states, where both can emerge as a ground state and be interconverted depending on the temperature and external strain. These results demonstrate a route to control the magneto-optical response of a qubit by modulating the operational conditions.Anton PershinGergely BarczaÖrs LegezaAdam GaliNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Anton Pershin Gergely Barcza Örs Legeza Adam Gali Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
description	Abstract Defect quantum bits (qubits) constitute an important emerging technology. However, it is necessary to explore new types of defects to enable large-scale applications. In this article, we examine the potential of magnesium-vacancy (MgV) in diamond to operate as a qubit by computing the key electronic- and spin properties with robust theoretical methods. We find that the electronic structure of MgV permits the coexistence of two loosely separated spin-states, where both can emerge as a ground state and be interconverted depending on the temperature and external strain. These results demonstrate a route to control the magneto-optical response of a qubit by modulating the operational conditions.
format	article
author	Anton Pershin Gergely Barcza Örs Legeza Adam Gali
author_facet	Anton Pershin Gergely Barcza Örs Legeza Adam Gali
author_sort	Anton Pershin
title	Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
title_short	Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
title_full	Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
title_fullStr	Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
title_full_unstemmed	Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
title_sort	highly tunable magneto-optical response from magnesium-vacancy color centers in diamond
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1e6711d3cd9441e1962b21706eb5a184
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Highly tunable magneto-optical response from magnesium-vacancy color centers in diamond

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