Dynamical Conductivity at the Dirty Superconductor-Metal Quantum Phase Transition
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/04/2012
19/04/2012
2010
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| Resumo |
We study the transport properties of ultrathin disordered nanowires in the neighborhood of the superconductor-metal quantum phase transition. To this end we combine numerical calculations with analytical strong-disorder renormalization group results. The quantum critical conductivity at zero temperature diverges logarithmically as a function of frequency. In the metallic phase, it obeys activated scaling associated with an infinite-randomness quantum critical point. We extend the scaling theory to higher dimensions and discuss implications for experiments. FAPESP[2010/03749-4] CNPq[302301/2009-7] Research Corporation National Science Foundation NSF[DMR-0339147] National Science Foundation NSF[DMR-0906566] |
| Identificador |
PHYSICAL REVIEW LETTERS, v.105, n.14, 2010 0031-9007 http://producao.usp.br/handle/BDPI/16428 10.1103/PhysRevLett.105.145702 |
| Idioma(s) |
eng |
| Publicador |
AMER PHYSICAL SOC |
| Relação |
Physical Review Letters |
| Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
| Palavras-Chave | #ISING SPIN CHAINS #SYSTEMS #TEMPERATURE #BEHAVIOR #ARRAY #Physics, Multidisciplinary |
| Tipo |
article original article publishedVersion |
