Effect of disorder on coherent quantum phase slips in Josephson junction chains
نویسندگان
چکیده
منابع مشابه
Quantum phase slips in Josephson junction rings
G. Rastelli,1,2 I. M. Pop,3,4 and F. W. J. Hekking1 1Université Grenoble 1/CNRS, LPMMC UMR 5493, B.P. 166, 38042 Grenoble, France 2Fachbereich Physik, Universität Konstanz, D-78457 Konstanz, Germany 3Institut Néel, CNRS, and Université Joseph Fourier, B.P. 166, 38042 Grenoble, France 4Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA (Received 6 January 2012; rev...
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Quantum phase slips in superconducting loops threaded by an external magnetic field provide a coupling between macroscopic quantum states with supercurrents circulating in opposite directions. We analyze the dynamics of the phase slips as a function of the superconducting loop length, from fully coherent dynamics for short loops to dissipative dynamics for the long ones. For intermediate length...
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Vladimir E. Manucharyan,1,2 Nicholas A. Masluk,1 Archana Kamal,1 Jens Koch,1,3 Leonid I. Glazman,1 and Michel H. Devoret1 1Departments of Physics and Applied Physics, Yale University, New Haven, Connecticut 06520, USA 2Society of Fellows, Harvard University, Cambridge, Massachusetts 02138, USA 3Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA (Received...
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The interplay between superconductivity and Coulomb interactions has been studied for more than 20 years now1–13. In low-dimensional systems, superconductivity degrades in the presence of Coulomb repulsion: interactions tend to suppress fluctuations of charge, thereby increasing fluctuations of phase. This can lead to the occurrence of a superconducting– insulator transition, as has been observ...
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The resistivity of a one-dimensional Josephson junction array at zero temperature is calculated by estimating the nucleation rate of quantum phase slips. We choose a certain collective coordinate which describes the nucleation process and estimate the corresponding effective mass. In the strong coupling regime, where Josephson coupling energy exceeds the charging energy, we calculate the nuclea...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2018
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.98.054513