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Applied Physics Letters

Josephson device for quantum experiments

C. Granata, Valentina Corato, Luigi Longobardi, M. Russo, B. Ruggiero, P. Silvestrini

Published Apr 22, 2002• 21 citations
Publisher

Abstract

We present the characterization of a fully integrated Josephson device consisting of a rf-superconducting quantum interference device (SQUID) coupled to a readout system based on a dc SQUID sensor. Particular care in the design is devoted to minimize the electromagnetic noise coming from the environment. We report data on dc SQUID performances as well as on the decay rate from metastable flux states of the rf SQUID in the classical regime. The low dissipation level and the good insulation of the probe from the external noise are encouraging in view of macroscopic quantum experiments.

DOI
10.1063/1.1469653

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