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rdf:type
lifeskim:mentions
pubmed:issue
23
pubmed:dateCreated
2011-1-14
pubmed:abstractText
We measure the dispersive energy-level shift of an LC resonator magnetically coupled to a superconducting qubit, which clearly shows that our system operates in the ultrastrong coupling regime. The large mutual kinetic inductance provides a coupling energy of ? 0.82 GHz, requiring the addition of counter-rotating-wave terms in the description of the Jaynes-Cummings model. We find a 50 MHz Bloch-Siegert shift when the qubit is in its symmetry point, fully consistent with our analytical model.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
1079-7114
pubmed:author
pubmed:issnType
Electronic
pubmed:day
3
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
237001
pubmed:year
2010
pubmed:articleTitle
Observation of the Bloch-Siegert shift in a qubit-oscillator system in the ultrastrong coupling regime.
pubmed:affiliation
Quantum Transport Group, Delft University of Technology, Lorentzweg 1, 2628CJ Delft, The Netherlands.
pubmed:publicationType
Journal Article