dc.contributor.author | Larcher, M. | |
dc.contributor.author | Laptyeva, T. V. | |
dc.contributor.author | Bodyfelt, J. D. | |
dc.contributor.author | Dalfovo, F. | |
dc.contributor.author | Modugno, Michele | |
dc.contributor.author | Flach, S. | |
dc.date.accessioned | 2014-02-18T18:52:31Z | |
dc.date.available | 2014-02-18T18:52:31Z | |
dc.date.issued | 2012-10-23 | |
dc.identifier.citation | New Journal of Physics 14 : (2012) // Article N. 103036 | es |
dc.identifier.issn | 1367-2630 | |
dc.identifier.uri | http://hdl.handle.net/10810/11542 | |
dc.description | 19 p. | es |
dc.description.abstract | We study the time evolution of wave packets in one-dimensional quasiperiodic lattices which localize linear waves. Nonlinearity (related to two-body interactions) has a destructive effect on localization, as observed recently for interacting atomic condensates (Lucioni et al 2011 Phys. Rev. Lett. 106 230403). We extend the analysis of the characteristics of the subdiffusive dynamics to large temporal and spatial scales. Our results for the second moment m(2) consistently reveal an asymptotic m(2) similar to t(1/3) and an intermediate m(2) similar to t(1/2) law. At variance with purely random systems (Laptyeva et al 2010 Europhys. Lett. 91 30001), the fractal gap structure of the linear wave spectrum strongly favours intermediate self-trapping events. Our findings give a new dimension to the theory of wave packet spreading in localizing environments. | es |
dc.description.sponsorship | ML acknowledges the Max Planck Institute for the Physics of Complex Systems, Dresden, for their hospitality. We are indebted to G. Modugno and E. Lucioni for fruitful discussions. This work was supported by the European Research Council through the QGBE grant and by the UPV/EHU under the UFI 11/55. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | Bose-Einstein condensate | es |
dc.subject | systems | es |
dc.subject | lattices | es |
dc.subject | localization | es |
dc.subject | instability | es |
dc.subject | breathers | es |
dc.subject | chain | es |
dc.title | Subdiffusion of nonlinear waves in quasiperiodic potentials | es |
dc.type | info:eu-repo/semantics/article | es |
dc.rights.holder | Content from this work may be used under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. [©IOP Publishing Ltd and Deutsche Physikalische Gesellschaft] | es |
dc.relation.publisherversion | http://iopscience.iop.org/1367-2630/14/10/103036/ | es |
dc.identifier.doi | 10.1088/1367-2630/14/10/103036 | |
dc.departamentoes | Física teórica e historia de la ciencia | es_ES |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia | es_ES |
dc.subject.categoria | PHYSICS AND ASTRONOMY | |