Print Email Facebook Twitter Quantum Phase Slips in Superconducting Wires with Weak Inhomogeneities Title Quantum Phase Slips in Superconducting Wires with Weak Inhomogeneities Author Vanevic, M. Nazarov, Y.V. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2012-05-03 Abstract Quantum phase slips are traditionally considered in diffusive superconducting wires which are assumed homogeneous. We present a definite estimate for the amplitude of phase slips that occur at a weak inhomogeneity in the wire where local resistivity is slightly increased. We model such a weak link as a general coherent conductor and show that the amplitude is dominated by the topological part of the action. We argue that such weak links occur naturally in apparently homogeneous wires and adjust the estimate to that case. The fabrication of an artificial weak link would localize phase slips and facilitate a better control of the phase-slip amplitude. To reference this document use: http://resolver.tudelft.nl/uuid:e40c147e-1b35-4a02-96eb-90ed6ad57f53 DOI https://doi.org/10.1103/PhysRevLett.108.187002 Publisher American Physical Society ISSN 0031-9007 Source http://link.aps.org/doi/10.1103/PhysRevLett.108.187002 Source Physical Review Letters, 108 (18), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 The Author(s)American Physical Society Files PDF Vanevic_2012.pdf 307.85 KB Close viewer /islandora/object/uuid:e40c147e-1b35-4a02-96eb-90ed6ad57f53/datastream/OBJ/view