Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems

Abstract We propose a simple approach to realize two-dimensional Floquet topological superfluid by periodically tuning the depth of square optical lattice potentials. We show that the periodic driving can induce topological phase transitions between trivial superfluid and Floquet topological superfl...

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Autores principales:	Xiaosen Yang, Beibing Huang, Zhengling Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8b5a48f17a2a42aaa74535249a9006d9
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spelling	oai:doaj.org-article:8b5a48f17a2a42aaa74535249a9006d92021-12-02T15:08:25ZFloquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems10.1038/s41598-018-20604-w2045-2322https://doaj.org/article/8b5a48f17a2a42aaa74535249a9006d92018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20604-whttps://doaj.org/toc/2045-2322Abstract We propose a simple approach to realize two-dimensional Floquet topological superfluid by periodically tuning the depth of square optical lattice potentials. We show that the periodic driving can induce topological phase transitions between trivial superfluid and Floquet topological superfluid. For this systems we verify the anomalous bulk-boundary correspondence, namely that the robust chiral Floquet edge states can appear even when the winding number of all the bulk Floquet bands is zero. We establish the existence of two Floquet Majorana zero modes separated in the quasienergy space, with ε 0,π = 0,π/T at the topological defects.Xiaosen YangBeibing HuangZhengling WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaosen Yang Beibing Huang Zhengling Wang Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
description	Abstract We propose a simple approach to realize two-dimensional Floquet topological superfluid by periodically tuning the depth of square optical lattice potentials. We show that the periodic driving can induce topological phase transitions between trivial superfluid and Floquet topological superfluid. For this systems we verify the anomalous bulk-boundary correspondence, namely that the robust chiral Floquet edge states can appear even when the winding number of all the bulk Floquet bands is zero. We establish the existence of two Floquet Majorana zero modes separated in the quasienergy space, with ε 0,π = 0,π/T at the topological defects.
format	article
author	Xiaosen Yang Beibing Huang Zhengling Wang
author_facet	Xiaosen Yang Beibing Huang Zhengling Wang
author_sort	Xiaosen Yang
title	Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
title_short	Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
title_full	Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
title_fullStr	Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
title_full_unstemmed	Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems
title_sort	floquet topological superfluid and majorana zero modes in two-dimensional periodically driven fermi systems
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/8b5a48f17a2a42aaa74535249a9006d9
work_keys_str_mv	AT xiaosenyang floquettopologicalsuperfluidandmajoranazeromodesintwodimensionalperiodicallydrivenfermisystems AT beibinghuang floquettopologicalsuperfluidandmajoranazeromodesintwodimensionalperiodicallydrivenfermisystems AT zhenglingwang floquettopologicalsuperfluidandmajoranazeromodesintwodimensionalperiodicallydrivenfermisystems
_version_	1718388133982109696

Floquet Topological Superfluid and Majorana Zero Modes in Two-Dimensional Periodically Driven Fermi Systems

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