High-fidelity quantum gates in Si/SiGe double quantum dots
High-fidelity quantum gates in Si/SiGe double quantum dots
No Thumbnail Available
Files
There are no files associated with this item.
Date
2018
Authors
Zajac, David M.
Sigillito, Anthony J.
Borjans, Felix
Taylor, Jacob M.
Petta, Jason R.
Editors
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
DOI (citable link)
ArXiv-ID
International patent number
Link to the license
oops
EU project number
Project
Open Access publication
Collections
Title in another language
Publication type
Journal article
Publication status
Published
Published in
Physical Review B ; 97 (2018), 8. - 085421. - ISSN 2469-9950. - eISSN 2469-9969
Abstract
Motivated by recent experiments of Zajac et al. [Science 359, 439 (2018)], we theoretically describe high-fidelity two-qubit gates using the exchange interaction between the spins in neighboring quantum dots subject to a magnetic field gradient. We use a combination of analytical calculations and numerical simulations to provide the optimal pulse sequences and parameter settings for the gate operation. We present a synchronization method which avoids detrimental spin flips during the gate operation and provide details about phase mismatches accumulated during the two-qubit gates which occur due to residual exchange interaction, nonadiabatic pulses, and off-resonant driving. By adjusting the gate times, synchronizing the resonant and off-resonant transitions, and compensating these phase mismatches by phase control, the overall gate fidelity can be increased significantly.
Summary in another language
Subject (DDC)
530 Physics
Keywords
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690
RUSS, Maximilian, David M. ZAJAC, Anthony J. SIGILLITO, Felix BORJANS, Jacob M. TAYLOR, Jason R. PETTA, Guido BURKARD, 2018. High-fidelity quantum gates in Si/SiGe double quantum dots. In: Physical Review B. 97(8), 085421. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.97.085421BibTex
@article{Russ2018Highf-41584, year={2018}, doi={10.1103/PhysRevB.97.085421}, title={High-fidelity quantum gates in Si/SiGe double quantum dots}, number={8}, volume={97}, issn={2469-9950}, journal={Physical Review B}, author={Russ, Maximilian and Zajac, David M. and Sigillito, Anthony J. and Borjans, Felix and Taylor, Jacob M. and Petta, Jason R. and Burkard, Guido}, note={Article Number: 085421} }
RDF
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41584"> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Borjans, Felix</dc:creator> <dcterms:title>High-fidelity quantum gates in Si/SiGe double quantum dots</dcterms:title> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-02-23T14:03:59Z</dc:date> <dc:creator>Zajac, David M.</dc:creator> <dc:creator>Petta, Jason R.</dc:creator> <dc:contributor>Borjans, Felix</dc:contributor> <dc:creator>Sigillito, Anthony J.</dc:creator> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dc:creator>Burkard, Guido</dc:creator> <dc:contributor>Russ, Maximilian</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/41584"/> <dc:contributor>Petta, Jason R.</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-02-23T14:03:59Z</dcterms:available> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dc:contributor>Zajac, David M.</dc:contributor> <dc:contributor>Taylor, Jacob M.</dc:contributor> <dc:contributor>Sigillito, Anthony J.</dc:contributor> <dc:contributor>Burkard, Guido</dc:contributor> <dc:language>eng</dc:language> <dcterms:issued>2018</dcterms:issued> <dcterms:abstract xml:lang="eng">Motivated by recent experiments of Zajac et al. [Science 359, 439 (2018)], we theoretically describe high-fidelity two-qubit gates using the exchange interaction between the spins in neighboring quantum dots subject to a magnetic field gradient. We use a combination of analytical calculations and numerical simulations to provide the optimal pulse sequences and parameter settings for the gate operation. We present a synchronization method which avoids detrimental spin flips during the gate operation and provide details about phase mismatches accumulated during the two-qubit gates which occur due to residual exchange interaction, nonadiabatic pulses, and off-resonant driving. By adjusting the gate times, synchronizing the resonant and off-resonant transitions, and compensating these phase mismatches by phase control, the overall gate fidelity can be increased significantly.</dcterms:abstract> <dc:creator>Taylor, Jacob M.</dc:creator> <dc:creator>Russ, Maximilian</dc:creator> </rdf:Description> </rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
Yes
Refereed
Yes