Nuclear spin quantum memory in silicon carbide

Transition metal (TM) defects in silicon carbide (SiC) are a promising platform for applications in quantum technology. Some TM defects, e.g., vanadium, emit in one of the telecom bands, but the large ground-state hyperfine manifold poses a problem for applications which require pure quantum states....

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Main Authors: Benedikt Tissot, Michael Trupke, Philipp Koller, Thomas Astner, Guido Burkard
Format: Article
Language:English
Published: American Physical Society 2022-08-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.033107
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author Benedikt Tissot
Michael Trupke
Philipp Koller
Thomas Astner
Guido Burkard
author_facet Benedikt Tissot
Michael Trupke
Philipp Koller
Thomas Astner
Guido Burkard
author_sort Benedikt Tissot
collection DOAJ
description Transition metal (TM) defects in silicon carbide (SiC) are a promising platform for applications in quantum technology. Some TM defects, e.g., vanadium, emit in one of the telecom bands, but the large ground-state hyperfine manifold poses a problem for applications which require pure quantum states. We develop a driven, dissipative protocol to polarize the nuclear spin, based on a rigorous theoretical model of the defect. We further show that nuclear-spin polarization enables the use of well-known methods for initialization and long time coherent storage of quantum states. The proposed nuclear-spin preparation protocol thus marks the first step towards an all-optically controlled integrated platform for quantum technology with TM defects in SiC.
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spelling doaj.art-b3d3a697c04d42dfa8c44787e82fb5522024-04-12T17:23:28ZengAmerican Physical SocietyPhysical Review Research2643-15642022-08-014303310710.1103/PhysRevResearch.4.033107Nuclear spin quantum memory in silicon carbideBenedikt TissotMichael TrupkePhilipp KollerThomas AstnerGuido BurkardTransition metal (TM) defects in silicon carbide (SiC) are a promising platform for applications in quantum technology. Some TM defects, e.g., vanadium, emit in one of the telecom bands, but the large ground-state hyperfine manifold poses a problem for applications which require pure quantum states. We develop a driven, dissipative protocol to polarize the nuclear spin, based on a rigorous theoretical model of the defect. We further show that nuclear-spin polarization enables the use of well-known methods for initialization and long time coherent storage of quantum states. The proposed nuclear-spin preparation protocol thus marks the first step towards an all-optically controlled integrated platform for quantum technology with TM defects in SiC.http://doi.org/10.1103/PhysRevResearch.4.033107
spellingShingle Benedikt Tissot
Michael Trupke
Philipp Koller
Thomas Astner
Guido Burkard
Nuclear spin quantum memory in silicon carbide
Physical Review Research
title Nuclear spin quantum memory in silicon carbide
title_full Nuclear spin quantum memory in silicon carbide
title_fullStr Nuclear spin quantum memory in silicon carbide
title_full_unstemmed Nuclear spin quantum memory in silicon carbide
title_short Nuclear spin quantum memory in silicon carbide
title_sort nuclear spin quantum memory in silicon carbide
url http://doi.org/10.1103/PhysRevResearch.4.033107
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AT michaeltrupke nuclearspinquantummemoryinsiliconcarbide
AT philippkoller nuclearspinquantummemoryinsiliconcarbide
AT thomasastner nuclearspinquantummemoryinsiliconcarbide
AT guidoburkard nuclearspinquantummemoryinsiliconcarbide