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High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures
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10.1063/1.2357858
/content/aip/journal/apl/89/13/10.1063/1.2357858
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357858
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Equivalent circuit of a SFQ comparator (a). Optical photograph of a shunt resistor with connection to a cooling fin in (b) and of the measured comparator with cooling fins in (c).

Image of FIG. 2.
FIG. 2.

Voltage across junction J1 (squares, right scale) and density of switching probability (circles, left scale) as a function of the signal current . The solid line corresponds to a Gaussian fit.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the gray zone for the comparator without cooling fins [ (squares)] and for the comparators with cooling fins [ (circles), (triangles)]. The solid lines represent corresponding theoretical dependences of the gray zone in the thermal limit [Eq. (2) with ]. Crossover temperatures between thermal and quantum limits for the comparators with and are marked by arrows.

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/content/aip/journal/apl/89/13/10.1063/1.2357858
2006-09-26
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-resolution superconducting single-flux quantum comparator for sub-Kelvin temperatures
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357858
10.1063/1.2357858
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