Multifractal Quantum Evolution at a Mobility Edge
| dc.contributor.author | Evangelou, S. N. | en |
| dc.contributor.author | Katsanos, D. E. | en |
| dc.date.accessioned | 2015-11-24T18:40:20Z | |
| dc.date.available | 2015-11-24T18:40:20Z | |
| dc.identifier.issn | 0305-4470 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/17600 | |
| dc.rights | Default Licence | - |
| dc.subject | wave-functions | en |
| dc.subject | quasiperiodic systems | en |
| dc.subject | harper model | en |
| dc.subject | localization | en |
| dc.subject | spectrum | en |
| dc.title | Multifractal Quantum Evolution at a Mobility Edge | en |
| heal.abstract | We describe the time evolution of a quantum wavepacket at the Anderson metal-insulator transition using a quasirandom model as an example of a system with a mobility edge. It is demonstrated that the dynamical wavefuunction is multifractal characterized by a continuous set of generalized spectral dimensions mu(q) and we find its alpha - f(alpha) spectra. We also define and calculate an infinite hierarchy of diffusion exponents gamma(q) corresponding to all the displacement moments (\r(t)\q) describing the quantum evolution. A slow subdiffusive decay for the 'staying at the origin probability' (P(t)) averaged over all initial sites is obtained at the mobility edge. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://A1993MN31000010 | - |
| heal.journalName | Journal of Physics a-Mathematical and General | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1993 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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