Quantum charge diffusion in underdamped Josephson junctions and superconducting nanowires

Abstract

The effect of quantum fluctuations on the current-voltage characteristics of Josephson junctions and superconducting nanowires is studied in the underdamped limit. Quantum fluctuations induce transitions between a Coulomb--blockade and a supercurrent branch, and can significantly modify the shape of current-voltage characteristics in the case of a highly resistive environment. Owing to the phase-charge duality, our results can be directly extended to the opposite overdamped limit.

6 pages, 2 figures, replaced with published version

References in corpus (9)

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• Coulomb Blockade and Coherent Single-Cooper-Pair Tunneling in Single Josephson Junctions
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• Overdamped quantum phase diffusion and charging effects in Josephson junctions
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Cited by in corpus (7)

• Phase-charge duality in Josephson junction circuits: Role of inertia and effect of microwave irradiation
• Quantum Phase-Slip Junction Under Microwave Irradiation
• Modeling Bloch Oscillations in Nanoscale Josephson Junctions
• Array of Josephson junctions with a non-sinusoidal current-phase relation as a model of the resistive transition of unconventional superconductors
• Critical current for an insulating regime of an underdamped current-biased topological Josephson junction
• Insulating regime of an underdamped current-biased Josephson junction supporting ${\mathbb{Z}}_3$ and ${\mathbb{Z}}_4$ parafermions
• Mesoscopic electron transport and atomic gases, a review of Frank W. J. Hekking's scientific work