Microscopic theory of thermal phase slips in clean narrow superconducting wires

Abstract

We consider structure of a thermal phase-slip center for a simple microscopic model of a clean one-dimensional superconductors in which superconductivity occurs only within one conducting channel or several identical channels. Surprisingly, the Eilenberger equations describing the saddle-point configuration allow for exact analytical solution in the whole temperature and current range. This solution allows us to derive a closed expression for the free-energy barrier, which we use to compute its temperature and current dependences.

References in corpus (8)

• Quantum suppression of superconductivity in ultrathin nanowires
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• Reply to the Comment on 'Quantum Phase Slips and Transport in Ultra-Thin Superconducting Wires'
• Quantum Tunneling of the Order Parameter in Superconducting Nanowires
• Dissipation in Quasi One-Dimensional Superconducting Single-Crystal Sn Nanowires
• Size Dependent Breakdown of Superconductivity in Ultranarrow Nanowires
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Cited by in corpus (9)

• Superconductivity in one dimension
• Coulomb Blockade due to Quantum Phase-Slips Illustrated with Devices
• Saddle point states in 2D superconducting film biased near the depairing current
• Negative magnetoresistance of ultra-narrow superconducting nanowires in the resistive state
• Moving solitons in a one-dimensional fermionic superfluid
• Spectral characteristics of a fully-superconducting SQUIPT
• Long range $p$-wave proximity effect into a disordered metal
• Threshold fluctuations in a superconducting current-carrying bridge
• Morphological changes of a superconducting phase in a mixed state with a normal current: a multiple scale analysis