Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians

22 pages, 13 figures

Detalles Bibliográficos
Autores: Baba, Y., Junk, V., Hogger, W., Domínguez-Adame, F., Molina, Rafael A.
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/391545
Acceso en línea:http://hdl.handle.net/10261/391545
Access Level:acceso abierto
Palabra clave:Floquet
Dirac materials
Light–matter interaction
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spelling Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac HamiltoniansBaba, Y.Junk, V.Hogger, W.Domínguez-Adame, F.Molina, Rafael A.FloquetDirac materialsLight–matter interaction22 pages, 13 figuresRecent experiments, combing ultrafast strong-field irradiation of surfaces with time- and angle-resolved photoemission spectroscopy, allow for monitoring the time-dependent charge carrier dynamics and the build-up of transient sidebands due to the radiation pulses. While these structures are reminiscent of Floquet-Bloch bands, standard Floquet theory is not applicable since it requires a strictly time-periodic driving field. To study the emergence and formation of such sidebands, i.e. to provide a link between common Floquet physics and dynamical mechanisms underlying short driving pulses, we consider a generalization of Floquet theory, the so-called t − t ′ formalism. This approach naturally extents Floquet theory to driving field amplitudes with a superimposed envelope shape. Motivated by experiments we study 2D Dirac Hamiltonians subject to linearly and circularly polarised light waves with a Gaussian field envelope of a few cycles. For these Floquet-Bloch Hamiltonians we study the evolution of their Floquet-Bloch spectra, accompanied by a systematic analysis of the time-dependent (sideband) transitions. We show that sideband occupation requires circularly polarized light for linear Dirac systems such as graphene, while for Dirac models with trigonal warping, describing surface states of topological insulators such as Bi 2 Se 3 , both linearly and circularly polarised pulses induce sideband excitations.Work at Madrid has been supported by Comunidad de Madrid (Recovery, Transformation and Resilience Plan), NextGenerationEU from the European Union (Grant MAD2D-CM-UCM5) and‘Talento Program’ (Grant 2019-T1/IND-14088), Agencia Estatal de Investigación (Grant PID2022-136285NB-C31). Research at the University of Regensburg has been funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within Project-ID 314695032- SFB 1277 (Project A07).Institute of Physics PublishingComunidad de MadridAgencia Estatal de Investigación (España)University of RegensburgGerman Research FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/391545reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136285NB-C31http://dx.doi.org/10.1088/1367-2630/adc594Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3915452026-05-22T06:33:51Z
dc.title.none.fl_str_mv Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
title Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
spellingShingle Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
Baba, Y.
Floquet
Dirac materials
Light–matter interaction
title_short Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
title_full Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
title_fullStr Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
title_full_unstemmed Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
title_sort Radiation-induced dynamical formation of Floquet-Bloch bands in Dirac Hamiltonians
dc.creator.none.fl_str_mv Baba, Y.
Junk, V.
Hogger, W.
Domínguez-Adame, F.
Molina, Rafael A.
author Baba, Y.
author_facet Baba, Y.
Junk, V.
Hogger, W.
Domínguez-Adame, F.
Molina, Rafael A.
author_role author
author2 Junk, V.
Hogger, W.
Domínguez-Adame, F.
Molina, Rafael A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Comunidad de Madrid
Agencia Estatal de Investigación (España)
University of Regensburg
German Research Foundation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Floquet
Dirac materials
Light–matter interaction
topic Floquet
Dirac materials
Light–matter interaction
description 22 pages, 13 figures
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/391545
url http://hdl.handle.net/10261/391545
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136285NB-C31
http://dx.doi.org/10.1088/1367-2630/adc594
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Institute of Physics Publishing
publisher.none.fl_str_mv Institute of Physics Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408847794274304
score 15.812429

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