Publikation:

High-fidelity quantum gates in Si/SiGe double quantum dots

Lade...
Vorschaubild

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2018

Autor:innen

Zajac, David M.
Sigillito, Anthony J.
Borjans, Felix
Taylor, Jacob M.
Petta, Jason R.

Herausgeber:innen

Kontakt

ISSN der Zeitschrift

Electronic ISSN

ISBN

Bibliografische Daten

Verlag

Schriftenreihe

Auflagebezeichnung

URI (zitierfähiger Link)

Internationale Patentnummer

Angaben zur Forschungsförderung

Projekt

Open Access-Veröffentlichung
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Physical Review B. 2018, 97(8), 085421. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.97.085421

Zusammenfassung

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.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690RUSS, 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. 2018, 97(8), 085421. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.97.085421
BibTex
@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>

Interner Vermerk

xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter

Kontakt
URL der Originalveröffentl.

Prüfdatum der URL

Prüfungsdatum der Dissertation

Finanzierungsart

Kommentar zur Publikation

Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Ja
Diese Publikation teilen