Nonanalytic scaling of conductance cumulants in dirty superconducting wires

Autor:	A. M. S. Macedo
Rok vydání:	2002
Předmět:	Physics Superconductivity Condensed matter physics Quantum mechanics Conductance Limit (mathematics) Scaling Length dependence Cumulant Symmetry (physics)
Zdroj:	Physical Review B. 65
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.65.132510
Popis:	We study coherent heat transport in weakly disordered unconventional superconducting wires. The first three moments of the heat conductance are calculated exactly for all length scales in the presence of time-reversal symmetry. In the diffusive regime, the leading contribution to the third cumulant of the conductance displays unusual nonanalytic length dependence, implying the inapplicability of perturbative methods. In the long-length limit our results for the conductance moments are consistent with recent predictions of the absence of localization in systems with broken spin-rotation invariance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41bcbdd3d0c1ec973cc46ab4eac39632 https://doi.org/10.1103/physrevb.65.132510 Zobrazit plný text záznamu