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Quantitative evaluation of defect-models in superconducting phase qubits
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10.1063/1.3529457
/content/aip/journal/apl/97/25/10.1063/1.3529457
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/25/10.1063/1.3529457
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Peak positions obtained for (a) qubit spectroscopy and (b) swap-spectroscopy. For clarity, only 10% of the data set is shown. The error bars give the confidence interval for the fitted peak positions. The theoretical curves show the relevant transition frequencies for the coupled qubit-TLS system obtained via fitting the extracted peak positions (see text). The inserts show examples of the (normalized) escape probability as a function of excitation frequency and bias flux, from which the peak positions are extracted.

Image of FIG. 2.
FIG. 2.

Anatomy of a qubit-TLS anticrossing in the high-power regime. The overall slope of the spectral lines, their position, and the spacing between one- and two-photon features allow us to calibrate the system, even for several independent fitting parameters (see text). The separation and asymmetry of the lines, within the anticrossing itself, allow us to estimate the transverse and longitudinal components of the coupling operator, respectively.

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/content/aip/journal/apl/97/25/10.1063/1.3529457
2010-12-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantitative evaluation of defect-models in superconducting phase qubits
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/25/10.1063/1.3529457
10.1063/1.3529457
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