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Left: Measurement setup for the cross correlation and power gain measurements. The BOT circuit is indicated by the dashed box. The BOT and the resistor are at 34 mK while the rest of the components are at room temperature. Right: I–V characteristic and current gain for . The Coulomb blockade is clearly seen as the environmental resistance and .
Experimental (●) and simulated (∎) output current noise spectral density as a function of the current gain for base current . Fitted lines are to guide the eyes.
BOT input referred noise temperature as a function of current gain from the experiment (●) and simulation (∎).
Input referred current noise spectrum for . The corner frequency is found at the vertex of the two lines.
BOT parameters. and are the normal state resistances of the NIS and JJ tunnel junctions. Resistances are given in units of and energies in Kelvins.
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