Dynamical conductivity at the dirty superconductor-metal quantum phase transition
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 tempera...
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| Format: | Online |
| Language: | Portuguese |
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Universidade Estadual de Campinas
2011
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| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3282 |
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| _version_ | 1864358300554887168 |
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| author | Neto , José Abel Hoyos |
| author_facet | Neto , José Abel Hoyos |
| author_sort | Neto , José Abel Hoyos |
| collection | Portal de Eventos Científicos da UNICAMP |
| container_reference | Physicae Proceedings; Vol. 1 No. 1 (2010): Proceedings X EJP ; 1-1 |
| description | 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 in?nite-randomness quantum critical point. We extend the scaling theory to higher dimensions and discuss implications for experiments. |
| first_indexed | 2025-10-08T13:49:24Z |
| format | Online |
| id | ojs-article-3282 |
| institution | Universidade Estadual de Campinas |
| issn | 2236-7535 |
| language | por |
| last_indexed | 2025-10-08T13:49:24Z |
| publishDate | 2011 |
| publisher | Universidade Estadual de Campinas |
| record_format | ojs |
| spelling | ojs-article-32822020-05-15T15:13:20Z Dynamical conductivity at the dirty superconductor-metal quantum phase transition Neto , José Abel Hoyos Superconductor metal Nanowires 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 in?nite-randomness quantum critical point. We extend the scaling theory to higher dimensions and discuss implications for experiments. Universidade Estadual de Campinas 2011-04-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3282 Physicae Proceedings; Vol. 1 No. 1 (2010): Proceedings X EJP ; 1-1 Physicae Proceedings; v. 1 n. 1 (2010): Proceedings X EJP ; 1-1 2236-7535 por https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3282/3209 Copyright (c) 2010 Physicae |
| spellingShingle | Neto , José Abel Hoyos Superconductor metal Nanowires Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title | Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title_full | Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title_fullStr | Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title_full_unstemmed | Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title_short | Dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| title_sort | dynamical conductivity at the dirty superconductor-metal quantum phase transition |
| topic | Superconductor metal Nanowires |
| url | https://econtents.sbu.unicamp.br/eventos/index.php/phyproceedings/article/view/3282 |
| work_keys_str_mv | AT netojoseabelhoyos dynamicalconductivityatthedirtysuperconductormetalquantumphasetransition |
