Alba, E, Pachos, JK and Garcia-Ripoll, JJ (2016) Winding number order in the Haldane model with interactions. New Journal of Physics, 18. 033022. ISSN 1367-2630
Abstract
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.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 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. |
Keywords: | topological phases; topological insulators; ultracold atoms; DMRG |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Theoretical Physics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Oct 2016 15:23 |
Last Modified: | 17 Oct 2016 15:23 |
Published Version: | https://doi.org/10.1088/1367-2630/18/3/033022 |
Status: | Published |
Publisher: | IOP Publishing |
Identification Number: | 10.1088/1367-2630/18/3/033022 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99988 |