Excited states of exciton-polariton condensates in 2D and 1D harmonic traps

Autores
Trallero Giner, C.; Durnev, M. V.; Núñez Fernández, Yuriel; Vasilevskiy, M. I.; López Richard, V.; Kavokin, A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a theoretical description of Bogolyubov-type excitations of exciton-polariton Bose-Einstein condensates (BECs) in semiconductor microcavities. For a typical two-dimensional (2D) BEC we focus on two limiting cases, the weak- and strong-coupling regimes, where a perturbation theory and the Thomas-Fermi approximation, respectively, are valid. We calculate integrated scattering intensity spectra for probing the collective excitations of the condensate in both considered limits. Moreover, in relation to recent experiments on optical modulation allowing localization of condensates in a trap with well-controlled shape and dimensions, we study the quasi-one-dimensional (1D) motion of the BEC in microwires and report the corresponding Bogolyubov excitation spectrum. We show that in the 1D case the characteristic polariton-polariton interaction constant is expressed as g 1 = 3 λ N / ( 2 L y ) ( λ is the 2D polariton-polariton interaction parameter in the cavity, N the number of the particles, and L y the wire cavity width). We reveal some interesting features for 2D and 1D Bogolyubov spectra for both repulsive ( λ > 0 ) and attractive ( λ < 0 ) interactions.
Fil: Trallero Giner, C.. Universidad de la Habana; Cuba
Fil: Durnev, M. V.. State University of St. Petersburg; Rusia
Fil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vasilevskiy, M. I.. Universidade Do Minho; Portugal
Fil: López Richard, V.. Universidade Federal do São Carlos; Brasil
Fil: Kavokin, A.. State University of St. Petersburg; Rusia. University of Southampton; Reino Unido
Materia
Exciton-Polariton Condensates
Harmonic Traps
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/32879
Acceder
id CONICETDig_f4fdce7d9b37f441130b5b3dd7f77168
oai_identifier_str oai:ri.conicet.gov.ar:11336/32879
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Excited states of exciton-polariton condensates in 2D and 1D harmonic trapsTrallero Giner, C.Durnev, M. V.Núñez Fernández, YurielVasilevskiy, M. I.López Richard, V.Kavokin, A.Exciton-Polariton CondensatesHarmonic Trapshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a theoretical description of Bogolyubov-type excitations of exciton-polariton Bose-Einstein condensates (BECs) in semiconductor microcavities. For a typical two-dimensional (2D) BEC we focus on two limiting cases, the weak- and strong-coupling regimes, where a perturbation theory and the Thomas-Fermi approximation, respectively, are valid. We calculate integrated scattering intensity spectra for probing the collective excitations of the condensate in both considered limits. Moreover, in relation to recent experiments on optical modulation allowing localization of condensates in a trap with well-controlled shape and dimensions, we study the quasi-one-dimensional (1D) motion of the BEC in microwires and report the corresponding Bogolyubov excitation spectrum. We show that in the 1D case the characteristic polariton-polariton interaction constant is expressed as g 1 = 3 λ N / ( 2 L y ) ( λ is the 2D polariton-polariton interaction parameter in the cavity, N the number of the particles, and L y the wire cavity width). We reveal some interesting features for 2D and 1D Bogolyubov spectra for both repulsive ( λ > 0 ) and attractive ( λ < 0 ) interactions.Fil: Trallero Giner, C.. Universidad de la Habana; CubaFil: Durnev, M. V.. State University of St. Petersburg; RusiaFil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vasilevskiy, M. I.. Universidade Do Minho; PortugalFil: López Richard, V.. Universidade Federal do São Carlos; BrasilFil: Kavokin, A.. State University of St. Petersburg; Rusia. University of Southampton; Reino UnidoAmerican Physical Society2014-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32879Trallero Giner, C.; Durnev, M. V.; Núñez Fernández, Yuriel; Vasilevskiy, M. I.; López Richard, V.; et al.; Excited states of exciton-polariton condensates in 2D and 1D harmonic traps; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 20; 5-2014; 1-11; 2053171098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.205317info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.205317info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:41Zoai:ri.conicet.gov.ar:11336/32879instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:20:41.482CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
title Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
spellingShingle Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
Trallero Giner, C.
Exciton-Polariton Condensates
Harmonic Traps
title_short Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
title_full Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
title_fullStr Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
title_full_unstemmed Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
title_sort Excited states of exciton-polariton condensates in 2D and 1D harmonic traps
dc.creator.none.fl_str_mv Trallero Giner, C.
Durnev, M. V.
Núñez Fernández, Yuriel
Vasilevskiy, M. I.
López Richard, V.
Kavokin, A.
author Trallero Giner, C.
author_facet Trallero Giner, C.
Durnev, M. V.
Núñez Fernández, Yuriel
Vasilevskiy, M. I.
López Richard, V.
Kavokin, A.
author_role author
author2 Durnev, M. V.
Núñez Fernández, Yuriel
Vasilevskiy, M. I.
López Richard, V.
Kavokin, A.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Exciton-Polariton Condensates
Harmonic Traps
topic Exciton-Polariton Condensates
Harmonic Traps
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present a theoretical description of Bogolyubov-type excitations of exciton-polariton Bose-Einstein condensates (BECs) in semiconductor microcavities. For a typical two-dimensional (2D) BEC we focus on two limiting cases, the weak- and strong-coupling regimes, where a perturbation theory and the Thomas-Fermi approximation, respectively, are valid. We calculate integrated scattering intensity spectra for probing the collective excitations of the condensate in both considered limits. Moreover, in relation to recent experiments on optical modulation allowing localization of condensates in a trap with well-controlled shape and dimensions, we study the quasi-one-dimensional (1D) motion of the BEC in microwires and report the corresponding Bogolyubov excitation spectrum. We show that in the 1D case the characteristic polariton-polariton interaction constant is expressed as g 1 = 3 λ N / ( 2 L y ) ( λ is the 2D polariton-polariton interaction parameter in the cavity, N the number of the particles, and L y the wire cavity width). We reveal some interesting features for 2D and 1D Bogolyubov spectra for both repulsive ( λ > 0 ) and attractive ( λ < 0 ) interactions.
Fil: Trallero Giner, C.. Universidad de la Habana; Cuba
Fil: Durnev, M. V.. State University of St. Petersburg; Rusia
Fil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vasilevskiy, M. I.. Universidade Do Minho; Portugal
Fil: López Richard, V.. Universidade Federal do São Carlos; Brasil
Fil: Kavokin, A.. State University of St. Petersburg; Rusia. University of Southampton; Reino Unido
description We present a theoretical description of Bogolyubov-type excitations of exciton-polariton Bose-Einstein condensates (BECs) in semiconductor microcavities. For a typical two-dimensional (2D) BEC we focus on two limiting cases, the weak- and strong-coupling regimes, where a perturbation theory and the Thomas-Fermi approximation, respectively, are valid. We calculate integrated scattering intensity spectra for probing the collective excitations of the condensate in both considered limits. Moreover, in relation to recent experiments on optical modulation allowing localization of condensates in a trap with well-controlled shape and dimensions, we study the quasi-one-dimensional (1D) motion of the BEC in microwires and report the corresponding Bogolyubov excitation spectrum. We show that in the 1D case the characteristic polariton-polariton interaction constant is expressed as g 1 = 3 λ N / ( 2 L y ) ( λ is the 2D polariton-polariton interaction parameter in the cavity, N the number of the particles, and L y the wire cavity width). We reveal some interesting features for 2D and 1D Bogolyubov spectra for both repulsive ( λ > 0 ) and attractive ( λ < 0 ) interactions.
publishDate 2014
dc.date.none.fl_str_mv 2014-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/32879
Trallero Giner, C.; Durnev, M. V.; Núñez Fernández, Yuriel; Vasilevskiy, M. I.; López Richard, V.; et al.; Excited states of exciton-polariton condensates in 2D and 1D harmonic traps; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 20; 5-2014; 1-11; 205317
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32879
identifier_str_mv Trallero Giner, C.; Durnev, M. V.; Núñez Fernández, Yuriel; Vasilevskiy, M. I.; López Richard, V.; et al.; Excited states of exciton-polariton condensates in 2D and 1D harmonic traps; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 20; 5-2014; 1-11; 205317
1098-0121
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.205317
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.205317
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614189164789760
score 13.070432

Publicaciones similares