Rabi-type oscillations in a classical Josephson junction

Details Rabi-type oscillations in a classical Josephson junction Rabi-type oscillations in a classical Josephson junction

2005-02-22

arxiv.org/abs/cond-mat/0502521v1

Physical Review Letters, 95, 067001 (2005)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevLett.95.067001

We study analytically and numerically the phase-modulation properties of a biased classical Josephson tunnel junction in the zero-voltage state and phase-locked to an external ac field. We show that the phase-locked state is being modulated in the transients, or in response to perturbations, and the modulation frequency is calculated as a function of relevant system parameters, such as microwave field amplitude. The numerical analysis is parameterized similarly to recent experimental results in which a combination of pulsed ac signals and relative switching from the zero-voltage state are used to probe the internal excitations of the junctions. Our analysis demonstrates that the modulation of a phase-locked state in an entirely classical Josephson junction produces oscillations analogous to quantum mechanical Rabi oscillations, expected to be observed under the same conditions.

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