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Thermal noise in a high ultracryogenic resonator
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10.1063/1.1947927
/content/aip/journal/rsi/76/7/10.1063/1.1947927
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/7/10.1063/1.1947927
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Electrical circuit model of the resonator coupled to the SQUID amplifier, with the noise sources acting on the resonator.

Image of FIG. 2.
FIG. 2.

Sketch of the experimental apparatus. For the sake of clarity some features have been simplified. In particular, the threaded rings for the box seal are not shown and the number of coil sectors has been reduced.

Image of FIG. 3.
FIG. 3.

Mean square current noise of the unperturbed resonator as function of the temperature of the experimental probe, using both and as exchange gas. The error bar size is of the order of the point size. The predicted thermal noise is represented by the straight line.

Image of FIG. 4.
FIG. 4.

Resonator dissipation, expressed by the inverse of the quality factor as function of . The straight line is a linear fit to the data.

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/content/aip/journal/rsi/76/7/10.1063/1.1947927
2005-06-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal noise in a high Q ultracryogenic resonator
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/7/10.1063/1.1947927
10.1063/1.1947927
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