Stabilizing superconductivity in nanowires by coupling to dissipative environments.
We present a theory for a finite-length superconducting nanowire coupled to an environment. We show that in the absence of dissipation quantum phase slips always destroy superconductivity, even at zero temperature. Dissipation stabilizes the superconducting phase. We apply this theory to explain the "antiproximity effect" recently seen by Tian et al. in zinc nanowires.
Fu
Henry C
HC
Department of Physics, University of California, Berkeley, California 94720-7300, USA.
Seidel
Alexander
A
Clarke
John
J
Lee
Dung-Hai
DH