No Cover Image

Journal article 944 views 158 downloads

Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice

A. Dauphin, M. Müller, M. A. Martin-Delgado, Markus Muller

Physical Review A, Volume: 93, Issue: 4

Swansea University Author: Markus Muller

Check full text

DOI (Published version): 10.1103/PhysRevA.93.043611

Abstract

We propose a realistic scheme to quantum simulate the so-far experimentally unobserved topological Mottinsulator phase—an interaction-driven topological insulator—using cold atoms in an optical Lieb lattice. To thisend, we study a system of spinless fermions in a Lieb lattice, exhibiting repulsive n...

Full description

Published in: Physical Review A
ISSN: 2469-9926 2469-9934
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28645
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2016-06-03T19:16:41Z
last_indexed 2019-06-18T19:56:01Z
id cronfa28645
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2019-06-18T16:52:39.4523889</datestamp><bib-version>v2</bib-version><id>28645</id><entry>2016-06-03</entry><title>Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice</title><swanseaauthors><author><sid>9b2ac559af27c967ece69db08b83762a</sid><firstname>Markus</firstname><surname>Muller</surname><name>Markus Muller</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2016-06-03</date><deptcode>FGSEN</deptcode><abstract>We propose a realistic scheme to quantum simulate the so-far experimentally unobserved topological Mottinsulator phase&#x2014;an interaction-driven topological insulator&#x2014;using cold atoms in an optical Lieb lattice. To thisend, we study a system of spinless fermions in a Lieb lattice, exhibiting repulsive nearest- and next-to-nearestneighborinteractions and derive the associated zero-temperature phase diagram within mean-field approximation.In particular, we analyze how the interactions can dynamically generate a charge density wave ordered, a nematic,and a topologically nontrivial quantum anomalous Hall phase. We characterize the topology of the different phasesby the Chern number and discuss the possibility of phase coexistence. Based on the identified phases, we proposea realistic implementation of this model using cold Rydberg-dressed atoms in an optical lattice. The scheme,which allows one to access, in particular, the topological Mott insulator phase, robustly and independently ofits exact position in parameter space, merely requires global, always-on off-resonant laser coupling to Rydbergstates and is feasible with state-of-the-art experimental techniques that have already been demonstrated in thelaboratory</abstract><type>Journal Article</type><journal>Physical Review A</journal><volume>93</volume><journalNumber>4</journalNumber><publisher/><issnPrint>2469-9926</issnPrint><issnElectronic>2469-9934</issnElectronic><keywords>Quantum Simulation, Topological Quantum Phases of Matter, Rydberg Atoms</keywords><publishedDay>11</publishedDay><publishedMonth>4</publishedMonth><publishedYear>2016</publishedYear><publishedDate>2016-04-11</publishedDate><doi>10.1103/PhysRevA.93.043611</doi><url/><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2019-06-18T16:52:39.4523889</lastEdited><Created>2016-06-03T17:52:18.3740306</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Physics</level></path><authors><author><firstname>A.</firstname><surname>Dauphin</surname><order>1</order></author><author><firstname>M.</firstname><surname>M&#xFC;ller</surname><order>2</order></author><author><firstname>M. A.</firstname><surname>Martin-Delgado</surname><order>3</order></author><author><firstname>Markus</firstname><surname>Muller</surname><order>4</order></author></authors><documents><document><filename>0028645-05062016111723.pdf</filename><originalFilename>Mueller_PRA_2016.pdf</originalFilename><uploaded>2016-06-05T11:17:23.4870000</uploaded><type>Output</type><contentLength>2501413</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2016-06-05T00:00:00.0000000</embargoDate><copyrightCorrect>true</copyrightCorrect></document></documents><OutputDurs/></rfc1807>
spelling 2019-06-18T16:52:39.4523889 v2 28645 2016-06-03 Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice 9b2ac559af27c967ece69db08b83762a Markus Muller Markus Muller true false 2016-06-03 FGSEN We propose a realistic scheme to quantum simulate the so-far experimentally unobserved topological Mottinsulator phase—an interaction-driven topological insulator—using cold atoms in an optical Lieb lattice. To thisend, we study a system of spinless fermions in a Lieb lattice, exhibiting repulsive nearest- and next-to-nearestneighborinteractions and derive the associated zero-temperature phase diagram within mean-field approximation.In particular, we analyze how the interactions can dynamically generate a charge density wave ordered, a nematic,and a topologically nontrivial quantum anomalous Hall phase. We characterize the topology of the different phasesby the Chern number and discuss the possibility of phase coexistence. Based on the identified phases, we proposea realistic implementation of this model using cold Rydberg-dressed atoms in an optical lattice. The scheme,which allows one to access, in particular, the topological Mott insulator phase, robustly and independently ofits exact position in parameter space, merely requires global, always-on off-resonant laser coupling to Rydbergstates and is feasible with state-of-the-art experimental techniques that have already been demonstrated in thelaboratory Journal Article Physical Review A 93 4 2469-9926 2469-9934 Quantum Simulation, Topological Quantum Phases of Matter, Rydberg Atoms 11 4 2016 2016-04-11 10.1103/PhysRevA.93.043611 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-06-18T16:52:39.4523889 2016-06-03T17:52:18.3740306 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics A. Dauphin 1 M. Müller 2 M. A. Martin-Delgado 3 Markus Muller 4 0028645-05062016111723.pdf Mueller_PRA_2016.pdf 2016-06-05T11:17:23.4870000 Output 2501413 application/pdf Accepted Manuscript true 2016-06-05T00:00:00.0000000 true
title Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
spellingShingle Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
Markus Muller
title_short Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
title_full Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
title_fullStr Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
title_full_unstemmed Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
title_sort Quantum simulation of a topological Mott insulator with Rydberg atoms in a Lieb lattice
author_id_str_mv 9b2ac559af27c967ece69db08b83762a
author_id_fullname_str_mv 9b2ac559af27c967ece69db08b83762a_***_Markus Muller
author Markus Muller
author2 A. Dauphin
M. Müller
M. A. Martin-Delgado
Markus Muller
format Journal article
container_title Physical Review A
container_volume 93
container_issue 4
publishDate 2016
institution Swansea University
issn 2469-9926
2469-9934
doi_str_mv 10.1103/PhysRevA.93.043611
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description We propose a realistic scheme to quantum simulate the so-far experimentally unobserved topological Mottinsulator phase—an interaction-driven topological insulator—using cold atoms in an optical Lieb lattice. To thisend, we study a system of spinless fermions in a Lieb lattice, exhibiting repulsive nearest- and next-to-nearestneighborinteractions and derive the associated zero-temperature phase diagram within mean-field approximation.In particular, we analyze how the interactions can dynamically generate a charge density wave ordered, a nematic,and a topologically nontrivial quantum anomalous Hall phase. We characterize the topology of the different phasesby the Chern number and discuss the possibility of phase coexistence. Based on the identified phases, we proposea realistic implementation of this model using cold Rydberg-dressed atoms in an optical lattice. The scheme,which allows one to access, in particular, the topological Mott insulator phase, robustly and independently ofits exact position in parameter space, merely requires global, always-on off-resonant laser coupling to Rydbergstates and is feasible with state-of-the-art experimental techniques that have already been demonstrated in thelaboratory
published_date 2016-04-11T03:34:53Z
_version_ 1763751487063719936
score 11.035874

Similar Items