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Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses

Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses

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RIBEIRO, Hugo, Guido BURKARD, Jason D. PETTA, Hong LU, Arthur C. GOSSARD, 2012. Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses

@unpublished{Ribeiro2012Coher-21781, title={Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses}, year={2012}, author={Ribeiro, Hugo and Burkard, Guido and Petta, Jason D. and Lu, Hong and Gossard, Arthur C.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/21781"> <dc:contributor>Lu, Hong</dc:contributor> <dc:contributor>Burkard, Guido</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:creator>Ribeiro, Hugo</dc:creator> <dcterms:abstract xml:lang="eng">We study finite-time Landau-Zener transitions at a singlet-triplet level crossing in a GaAs double quantum dot. Sweeps across the anti-crossing in the low driving speed limit match well with theoretical predictions based on the asymptotic Landau-Zener scattering approach. In particular, we only observe interference fringes when the detuning is swept through the anti-crossing. In contrast, for short rise-time pulses we find oscillations on both sides of the anti-crossing, as expected from finite-time theory. We demonstrate that both of these results are compatible if spin and charge degrees of freedom are taken into account in the time-dependent dynamics. We show that charge noise induces a competing mechanism against Landau-Zener transitions, which can be canceled by choosing appropriately tailored detuning pulses.</dcterms:abstract> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <dc:creator>Lu, Hong</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/21781"/> <dcterms:title>Coherent Adiabatic Spin Control in the Presence of Charge Noise Using Tailored Pulses</dcterms:title> <dc:contributor>Petta, Jason D.</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Gossard, Arthur C.</dc:creator> <dc:creator>Petta, Jason D.</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-02-13T16:31:54Z</dc:date> <dcterms:issued>2012</dcterms:issued> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-02-13T16:31:54Z</dcterms:available> <dc:contributor>Ribeiro, Hugo</dc:contributor> <dc:creator>Burkard, Guido</dc:creator> <dc:contributor>Gossard, Arthur C.</dc:contributor> </rdf:Description> </rdf:RDF>

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