Superconductor-To-Normal Transition In Finite Nanowires

 Title: Superconductor-To-Normal Transition In Finite Nanowires Author: Refael, Gil; Oreg, Yuval; Demler, Eugene A. Note: Order does not necessarily reflect citation order of authors. Citation: Refael, Gil, Eugene Demler, and Yuval Oreg. 2009. Superconductor-to-normal transition in finite nanowires. Physical Review B. Full Text & Related Files: 0803.2515v1.pdf (155.7Kb; PDF) Abstract: In this paper we discuss the interplay of quantum fluctuations and dissipation in uniform superconducting nanowires. We consider a phenomenological model with superconducting and normal components, and a finite equilibration rate between these two-fluids. We find that phase-slip dipoles proliferate in the wire, and decouple the two-fluids within its bulk. This implies that the the normal fluid only couples to the superconductor fluid through the leads at the edges of the wire, and the {\it local} dissipation is unimportant. Therefore, while long wires have a superconductor-metal transition tuned by local properties of the superconducting fluid, short wires have a transition when the total resistance is $$R_{total}$$ = $$R_{Q}$$ = $$h/4e^{2}$$. Published Version: doi://10.1103/PhysRevB.79.094524 Other Sources: http://arxiv.org/abs/0803.2515v1 Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:13421138 Downloads of this work: