Mesoscopic Josephson Effect

Abstract

In the classical Josephson effect the phase difference across the junction is well defined, and the supercurrent is reduced only weakly by phase diffusion. For mesoscopic junctions with small capacitance the phase undergoes large quantum fluctuations, and the current is also decreased by Coulomb blockade effects. We discuss the behavior of the current-voltage characteristics in a large range of parameters comprising the phase diffusion regime with coherent Josephson current as well as the supercurrent peak due to incoherent Cooper pair tunneling in the Coulomb blockade regime.

10 pages, 6 figures, submitted to Superlattices and Microstructures

References in corpus (1)

• Phase diffusion and charging effects in Josephson junctions

Cited by in corpus (7)

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• Two-Impurity Yu-Shiba-Rusinov States in Coupled Quantum Dots
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• Theory of superconductor-insulator transition in single Josephson junctions
• Short-time decoherence of Josephson charge qubits in Ohmic and 1/f noise environment
• Optimized proximity thermometer for ultrasensitive detection: Role of an ohmic electromagnetic environment
• Revisiting dissipation-driven phase transition in a Josephson junction