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Título: | Winding number order in the Haldane model with interactions |
Autor: | Alba, Emilio CSIC ORCID; Pachos, J.K.; García-Ripoll, Juan José CSIC ORCID | Palabras clave: | DMRG Ultracold atoms Topological insulators Topological phases |
Fecha de publicación: | 11-mar-2016 | Editor: | Institute of Physics Publishing | Citación: | New Journal of Physics 18: 033022 (2016) | Resumen: | We study the Haldane model with nearest-neighbor interactions. This model is physically motivated by the associated implementation with ultracold atoms. We show that the topological phase of the interacting model can be characterized by a physically observable winding number. The robustness of this number extends well beyond the topological insulator phase towards attractive and repulsive interactions that are comparable to the kinetic energy scale of the model. We identify and characterize the relevant phases of the model as a function of the interaction strength. ©2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft | Descripción: | 10 págs.; 4 figs.; Open Access funded by Creative Commons Atribution Licence 3.0 | Versión del editor: | http://doi.org/10.1088/1367-2630/18/3/033022 | URI: | http://hdl.handle.net/10261/146250 | DOI: | 10.1088/1367-2630/18/3/033022 | Identificadores: | doi: 10.1088/1367-2630/18/3/033022 issn: 1367-2630 |
Aparece en las colecciones: | (CFMAC-IFF) Artículos |
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Winding.pdf | 940,5 kB | Adobe PDF | Visualizar/Abrir |
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