Spin-orbit coupling and time-reversal symmetry in quantum gates

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STEPANENKO, Dimitrije, Nicholas E. BONESTEEL, David P. DIVINCENZO, Guido BURKARD, Daniel LOSS, 2003. Spin-orbit coupling and time-reversal symmetry in quantum gates. In: Physical Review. 68(115306), 115306. Available under: doi: 10.1103/PhysRevB.68.115306

@article{Stepanenko2003Spino-9049, title={Spin-orbit coupling and time-reversal symmetry in quantum gates}, year={2003}, doi={10.1103/PhysRevB.68.115306}, number={115306}, volume={68}, journal={Physical Review}, author={Stepanenko, Dimitrije and Bonesteel, Nicholas E. and DiVincenzo, David P. and Burkard, Guido and Loss, Daniel}, note={Article Number: 115306} }

<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/rdf/resource/123456789/9049"> <dc:creator>Bonesteel, Nicholas E.</dc:creator> <dc:contributor>Bonesteel, Nicholas E.</dc:contributor> <dc:creator>Stepanenko, Dimitrije</dc:creator> <dcterms:bibliographicCitation>First publ. in: arXiv:cond-mat/0303474 [cond-mat.mes-hall], Physical Review / B 68 (2003), 115306</dcterms:bibliographicCitation> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9049"/> <dc:contributor>Burkard, Guido</dc:contributor> <dc:creator>Loss, Daniel</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:53:09Z</dc:date> <dc:creator>Burkard, Guido</dc:creator> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9049/1/0303474v3.pdf"/> <dc:contributor>Loss, Daniel</dc:contributor> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9049/1/0303474v3.pdf"/> <dcterms:title>Spin-orbit coupling and time-reversal symmetry in quantum gates</dcterms:title> <dc:language>eng</dc:language> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dc:creator>DiVincenzo, David P.</dc:creator> <dc:contributor>DiVincenzo, David P.</dc:contributor> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:53:09Z</dcterms:available> <dc:rights>deposit-license</dc:rights> <dcterms:abstract xml:lang="eng">We study the effect of spin-orbit coupling on quantum gates produced by pulsing the exchange interaction between two single electron quantum dots. Spin-orbit coupling enters as a small spin precession when electrons tunnel between dots. For adiabatic pulses the resulting gate is described by a unitary operator acting on the four-dimensional Hilbert space of two qubits. If the precession axis is fixed, time-symmetric pulsing constrains the set of possible gates to those which, when combined with single qubit rotations, can be used in a simple CNOT construction. Deviations from time-symmetric pulsing spoil this construction. The effect of time asymmetry is studied by numerically integrating the Schr¨odinger equation using parameters appropriate for GaAs quantum dots. Deviations of the implemented gate from the desired form are shown to be proportional to dimensionless measures of both spin-orbit coupling and time asymmetry of the pulse.</dcterms:abstract> <dcterms:issued>2003</dcterms:issued> <dc:contributor>Stepanenko, Dimitrije</dc:contributor> <dc:format>application/pdf</dc:format> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> </rdf:Description> </rdf:RDF>

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