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

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

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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).
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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

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  • FAS Scholarly Articles [7362]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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