Generalized Haldane models on laser-coupling optical lattices

Abstract We propose two generalized Haldane models on laser-coupling optical lattices. Laser-assisted nearest neighbour tunnelings generate artificial staggered magnetic flux, facilitating the realization of topological nontrivial band structures. As generalizations of Haldane model, these models su...

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Autores principales:	Wanli Liu, Zhi Lin, Z. D. Wang, Yan Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b014f35304704926b791a291d34b1beb
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spelling	oai:doaj.org-article:b014f35304704926b791a291d34b1beb2021-12-02T15:08:01ZGeneralized Haldane models on laser-coupling optical lattices10.1038/s41598-018-30503-92045-2322https://doaj.org/article/b014f35304704926b791a291d34b1beb2018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30503-9https://doaj.org/toc/2045-2322Abstract We propose two generalized Haldane models on laser-coupling optical lattices. Laser-assisted nearest neighbour tunnelings generate artificial staggered magnetic flux, facilitating the realization of topological nontrivial band structures. As generalizations of Haldane model, these models support topological insulator and semimetal phases featuring high Chern numbers. We show simple rules for computing Chern numbers of our models and display the phase diagrams. Moreover, numerical calculations of energy spectra are in perfect agreement with our theoretical expectations. Our models may serve as two new family members for generalizing Haldane model on optical lattices.Wanli LiuZhi LinZ. D. WangYan ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wanli Liu Zhi Lin Z. D. Wang Yan Chen Generalized Haldane models on laser-coupling optical lattices
description	Abstract We propose two generalized Haldane models on laser-coupling optical lattices. Laser-assisted nearest neighbour tunnelings generate artificial staggered magnetic flux, facilitating the realization of topological nontrivial band structures. As generalizations of Haldane model, these models support topological insulator and semimetal phases featuring high Chern numbers. We show simple rules for computing Chern numbers of our models and display the phase diagrams. Moreover, numerical calculations of energy spectra are in perfect agreement with our theoretical expectations. Our models may serve as two new family members for generalizing Haldane model on optical lattices.
format	article
author	Wanli Liu Zhi Lin Z. D. Wang Yan Chen
author_facet	Wanli Liu Zhi Lin Z. D. Wang Yan Chen
author_sort	Wanli Liu
title	Generalized Haldane models on laser-coupling optical lattices
title_short	Generalized Haldane models on laser-coupling optical lattices
title_full	Generalized Haldane models on laser-coupling optical lattices
title_fullStr	Generalized Haldane models on laser-coupling optical lattices
title_full_unstemmed	Generalized Haldane models on laser-coupling optical lattices
title_sort	generalized haldane models on laser-coupling optical lattices
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b014f35304704926b791a291d34b1beb
work_keys_str_mv	AT wanliliu generalizedhaldanemodelsonlasercouplingopticallattices AT zhilin generalizedhaldanemodelsonlasercouplingopticallattices AT zdwang generalizedhaldanemodelsonlasercouplingopticallattices AT yanchen generalizedhaldanemodelsonlasercouplingopticallattices
_version_	1718388340766539776

Generalized Haldane models on laser-coupling optical lattices

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