Stochastic dynamics of a Josephson fluxon in an inhomogeneous junction
F. Kh. AbdullaevPhysicotechnical Institute, Fizika-Solntse Scientific-Industrial Consortium, Academy of Sciences of Uzbekistan, 700084, Tashkent, UzbekistanÉ. N. TsoiPhysicotechnical Institute, Fizika-Solntse Scientific-Industrial Consortium, Academy of Sciences of Uzbekistan, 700084, Tashkent, Uzbekistan
ABI
Abstract
A study is made of fluxon motion in a long Josephson junction with a local inhomogeneity (microresistor) in the presence of an alternating external current. Nonlinear resonances in the fluxon dynamics are considered. The process by which a fluxon trapped at an inhomogeneity is stochastically depinned under the influence of a periodic current is investigated analytically and numerically.
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