Author: Marchese Jeffrey Cirillo Matteo Grøch-Jensen Niels
Publisher: Springer Publishing Company
ISSN: 1230-1612
Source: Open Systems and Information Dynamics, Vol.14, Iss.2, 2007-06, pp. : 189-196
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Abstract
We present evidence for a close analogy between the nonlinear behaviour of a pulsed microwave-driven Josephson junction at low temperature and the experimentally observed behaviour of Josephson systems operated below the quantum transition temperature under similar conditions. We specifically address observations of Ramsey-type fringe oscillations, which can be understood in classical nonlinear dynamics as results of slow transient oscillations in a pulsed microwave environment. Simulations are conducted to mimic experimental measurements by recording the statistics of microwave-induced escape events from the anharmonic potential well of a zero-voltage state. Observations consistent with experimentally obtained Ramsey-type oscillations are found in the classical model.