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Theory of superconductor-insulator transition in single Josephson junctions

S. G. Chung
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Abstract

A non-band theory is developed to describe the superconductor-insulator (SI) transtition in resistively shunted, single Josephson junctions. The $I-V$ characteristic is formulated by a Landauer-like formula and evaluated by the path-integral transfer-matrix method. The result is consistent with the recent experiments at around 80 $mK$. However, the insulator phase shrinks with decreasing temperature indicating that the single Josephson junction becomes all superconducting at absolute zero temperature, as long as dissipation is present.

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S. G. Chung. 2002-02-09. Theory of superconductor-insulator transition in single Josephson junctions. https://doi.org/10.1103/physrevb.66.012503

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