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Quantum Fluctuations and Resistivity of Thin Superconducting Wires

Andrei D. Zaikin·Dmitrii S. Golubev·Anne van Otterlo·Gergely T. Zimanyi
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Abstract

We present a microscopic study of the quantum fluctuations of the superconducting order parameter in thin homogeneous superconducting wires at all temperatures below $T_C$. The rate of quantum phase slip processes determines the resistance $R(T)$ of the wire, which is observable in very thin wires, even at low temperature. Furthermore, we predict a new low temperature metallic phase below a critical wire-thickness in the 10nm range, in which quantum phase slips proliferate.

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Andrei D. Zaikin, Dmitrii S. Golubev, Anne van Otterlo, Gergely T. Zimanyi. 1996-09-16. Quantum Fluctuations and Resistivity of Thin Superconducting Wires. https://arxiv.org/abs/cond-mat/9609139

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