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Population inversion induced by Landau–Zener transition in a strongly driven rf superconducting quantum interference device
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10.1063/1.3093823
/content/aip/journal/apl/94/10/10.1063/1.3093823
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/10/10.1063/1.3093823
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Optical micrograph of the sample. (b) Schematic of the manipulation and measurement of the qubit. (c) A schematic of the time profile of the manipulation and measurement procedure.

Image of FIG. 2.
FIG. 2.

(a) Example data show the dependence of the population in state on the qubit flux bias without MW irradiation (dots) and with MW frequency and nominal MW power (squares), respectively. (b) Energy-level diagram calculated using the parameters in our experiments. The dashed arrows indicate the position of the resonant dips observed in the experiments as examples.

Image of FIG. 3.
FIG. 3.

(a) 3D view of the dependence of the population in state on the bias flux and MW power. , , and axes represent MW power, the qubit flux bias , and the population in state, respectively. MW frequency is 15.9 GHz. Strong population inversion due to LZ transition is clearly demonstrated. (b) The population in state as a function of flux bias and MW power simulated using parameters in our experiments.

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/content/aip/journal/apl/94/10/10.1063/1.3093823
2009-03-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Population inversion induced by Landau–Zener transition in a strongly driven rf superconducting quantum interference device
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/10/10.1063/1.3093823
10.1063/1.3093823
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