Quantum Phase Slips and Transport in Ultrathin Superconducting Wires
Quantum Phase Slips and Transport in Ultrathin Superconducting Wires
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 temperatures. Furthermore, we …