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Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique
We present an experimental study of the coherence properties of a single heavy-hole spin qubit formed in one quantum dot of a gated GaAs/AlGaAs double quantum dot device. We use a modified spin-readout latching technique in which the second quantum dot serves both as an auxiliary element for a fast...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005315/ https://www.ncbi.nlm.nih.gov/pubmed/36903828 http://dx.doi.org/10.3390/nano13050950 |
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author | Marton, Victor Sachrajda, Andrew Korkusinski, Marek Bogan, Alex Studenikin, Sergei |
author_facet | Marton, Victor Sachrajda, Andrew Korkusinski, Marek Bogan, Alex Studenikin, Sergei |
author_sort | Marton, Victor |
collection | PubMed |
description | We present an experimental study of the coherence properties of a single heavy-hole spin qubit formed in one quantum dot of a gated GaAs/AlGaAs double quantum dot device. We use a modified spin-readout latching technique in which the second quantum dot serves both as an auxiliary element for a fast spin-dependent readout within a 200 ns time window and as a register for storing the spin-state information. To manipulate the single-spin qubit, we apply sequences of microwave bursts of various amplitudes and durations to make Rabi, Ramsey, Hahn-echo, and CPMG measurements. As a result of the qubit manipulation protocols combined with the latching spin readout, we determine and discuss the achieved qubit coherence times: [Formula: see text] , [Formula: see text] , [Formula: see text] , and [Formula: see text] vs. microwave excitation amplitude, detuning, and additional relevant parameters. |
format | Online Article Text |
id | pubmed-10005315 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100053152023-03-11 Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique Marton, Victor Sachrajda, Andrew Korkusinski, Marek Bogan, Alex Studenikin, Sergei Nanomaterials (Basel) Article We present an experimental study of the coherence properties of a single heavy-hole spin qubit formed in one quantum dot of a gated GaAs/AlGaAs double quantum dot device. We use a modified spin-readout latching technique in which the second quantum dot serves both as an auxiliary element for a fast spin-dependent readout within a 200 ns time window and as a register for storing the spin-state information. To manipulate the single-spin qubit, we apply sequences of microwave bursts of various amplitudes and durations to make Rabi, Ramsey, Hahn-echo, and CPMG measurements. As a result of the qubit manipulation protocols combined with the latching spin readout, we determine and discuss the achieved qubit coherence times: [Formula: see text] , [Formula: see text] , [Formula: see text] , and [Formula: see text] vs. microwave excitation amplitude, detuning, and additional relevant parameters. MDPI 2023-03-06 /pmc/articles/PMC10005315/ /pubmed/36903828 http://dx.doi.org/10.3390/nano13050950 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Marton, Victor Sachrajda, Andrew Korkusinski, Marek Bogan, Alex Studenikin, Sergei Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title | Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title_full | Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title_fullStr | Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title_full_unstemmed | Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title_short | Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique |
title_sort | coherence characteristics of a gaas single heavy-hole spin qubit using a modified single-shot latching readout technique |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10005315/ https://www.ncbi.nlm.nih.gov/pubmed/36903828 http://dx.doi.org/10.3390/nano13050950 |
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