# Universal Thermal and Electrical Transport Near the Superconductor-Metal Quantum Phase Transition in Nanowires

 Title: Universal Thermal and Electrical Transport Near the Superconductor-Metal Quantum Phase Transition in Nanowires Author: Rosenow, Bernd; Shah, Nayana; Sachdev, Subir; Del Maestro, Adrian Note: Order does not necessarily reflect citation order of authors. Citation: Del Maestro, Adrian, Bernd Rosenow, Nayana Shah, and Subir Sachdev. 2008. Universal thermal and electrical transport near the superconductor-metal quantum phase transition in nanowires. Physical Review B 77(18): 180501(R). Full Text & Related Files: 0708.0687v1.pdf (164.9Kb; PDF) Abstract: We describe the thermal ($$\kappa$$) and electrical ($$\sigma$$) conductivities of quasi-one-dimensional wires, across a quantum phase transition from a superconductor to a metal induced by pair-breaking perturbations. Fluctuation corrections to BCS theory motivate a field theory for quantum criticality. We describe deviations in the Wiedemann-Franz ratio $$\kappa∕\sigma T$$ (where $$T$$ is the temperature) from the Lorenz number $$(\pi^2∕3)(k_B∕e)^2$$, which can act as sensitive tests of the theory. We also describe the crossovers out of the quantum-critical region into the metallic and superconducting phases. Published Version: doi:10.1103/PhysRevB.77.180501 Other Sources: http://arxiv.org/abs/0708.0687v1 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:7616484 Downloads of this work: