Coulomb blockade in superconducting quantum point contacts

Abstract

Amplitude of the Coulomb blockade oscillations is calculated for a single-mode Josephson junction with arbitrary electron transparency $D$. It is shown that the Coulomb blockade is suppressed in ballistic junctions with $D\to 1$. The suppression is described quantitatively as the Landau-Zener transition in imaginary time.

5 pages, 3 figures included

References in corpus (1)

• Mesoscopic charge quantization

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