Effect of voltage bias on the dc SQUID characteristics
作者： M. Kiviranta , H. Seppä
关键词: Dc squid 、 Voltage 、 Physics 、 Reactance 、 Biasing 、 Inductor 、 Squid 、 Condensed matter physics 、 Amplifier 、 Computer simulation
摘要: The dynamics of the dc SQUID, when voltage biased through an inductor, is computed by numerical simulation and perturbative analytical calculation. We find that dynamic resistance decreases from its current-biased value at low bias voltages, where inductive series reactance no longer separates Josephson oscillation source. flux-to-current conversion ratio, however, remains almost unaffected. This effect sometimes important in setups, a second SQUID used as readout amplifier.
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