Circuit theory for decoherence in superconducting charge qubits


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BURKARD, Guido, 2005. Circuit theory for decoherence in superconducting charge qubits. In: Physical Review(B71), 144511. Available under: doi: 10.1103/PhysRevB.71.144511

@article{Burkard2005Circu-4993, title={Circuit theory for decoherence in superconducting charge qubits}, year={2005}, doi={10.1103/PhysRevB.71.144511}, number={B71}, journal={Physical Review}, author={Burkard, Guido}, note={Article Number: 144511} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:contributor>Burkard, Guido</dc:contributor> <dc:date rdf:datatype="">2011-03-24T14:52:22Z</dc:date> <dcterms:issued>2005</dcterms:issued> <dc:rights>terms-of-use</dc:rights> <dc:format>application/pdf</dc:format> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:available rdf:datatype="">2011-03-24T14:52:22Z</dcterms:available> <dspace:hasBitstream rdf:resource=""/> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:abstract xml:lang="eng">Based on a network graph analysis of the underlying circuit, a quantum theory of arbitrary superconducting charge qubits is derived. Describing the dissipative elements of the circuit with a Caldeira-Leggett model, we calculate the decoherence and leakage rates of a charge qubit. The analysis includes decoherence due to a dissipative circuit element such as a voltage source or the quasiparticle resistances of the Josephson junctions in the circuit. The theory presented here is dual to the quantum circuit theory for superconducting flux qubits. In contrast to spin-boson models, the full Hilbert space structure of the qubit and its coupling to the dissipative environment is taken into account. Moreover, both self and mutual inductances of the circuit are fully included.</dcterms:abstract> <dc:language>eng</dc:language> <dc:creator>Burkard, Guido</dc:creator> <dcterms:isPartOf rdf:resource=""/> <dcterms:title>Circuit theory for decoherence in superconducting charge qubits</dcterms:title> <dcterms:hasPart rdf:resource=""/> <bibo:uri rdf:resource=""/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:bibliographicCitation>First publ. in: arXiv:cond-mat/0408588 [cond-mat.mes-hall], also publ. in: Physical Review (2005), B71, 144511</dcterms:bibliographicCitation> <dcterms:rights rdf:resource=""/> </rdf:Description> </rdf:RDF>

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