From measurements performed on a low-noise two-stage SQUID amplifier coupled to a high-Q electrical resonator we give a complete noise characterization of the SQUID amplifier around the resonator frequency of 11 kHz in terms of additive, back action and cross-correlation noise spectral densities. The minimum noise temperature evaluated at 135 mK is 10 mu K and corresponds to an energy resolution of 18 (h) over bar.
Full noise characterization of a low-noise two-stage squid amplifier / Falferi, P.; Mezzena, R.; Vinante, A.. - In: SUPERCONDUCTOR SCIENCE & TECHNOLOGY. - ISSN 0953-2048. - 22:7(2009), p. 075020. [10.1088/0953-2048/22/7/075020]
Full noise characterization of a low-noise two-stage squid amplifier
Mezzena R.;Vinante A.
2009-01-01
Abstract
From measurements performed on a low-noise two-stage SQUID amplifier coupled to a high-Q electrical resonator we give a complete noise characterization of the SQUID amplifier around the resonator frequency of 11 kHz in terms of additive, back action and cross-correlation noise spectral densities. The minimum noise temperature evaluated at 135 mK is 10 mu K and corresponds to an energy resolution of 18 (h) over bar.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
