Quantum ratchet effect for vortices

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dc.creatorMajer, J. B.
dc.creatorPeguiron, J.
dc.creatorGrifoni, M.
dc.creatorTusveld, M.
dc.creatorMooij, J. E.
dc.date2003-01-07
dc.date.accessioned2026-07-07T02:49:03Z
dc.date.available2026-07-07T02:49:03Z
dc.descriptionWe have measured a quantum ratchet effect for vortices moving in a quasi-one-dimensional Josephson junction array. In this solid-state device the shape of the vortex potential energy, and consequently the band structure, can be accurately designed. This band structure determines the presence or absence of the quantum ratchet effect, as observed in the presented experiments. In particular, asymmetric structures possessing only one band below the barrier do not exhibit current rectification at low temperatures and bias currents. The quantum nature of transport is also revealed in a universal/non-universal power-law dependence of the measured voltage-current characteristics for samples without/with rectification.
dc.descriptionAccepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0301073
dc.identifierhttp://arxiv.org/abs/cond-mat/0301073
dc.identifierPhys. Rev. Lett. 90, 056802 (2003)
dc.identifierdoi:10.1103/PhysRevLett.90.056802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20647
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStatistical Mechanics
dc.subjectSuperconductivity
dc.titleQuantum ratchet effect for vortices
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