Exact dynamics and squeezing in two harmonic modes coupled through angular momentum

Autores
Canosa, Norma Beatriz; Swapan, Mandal; Rossignoli, Raúl Dante
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the exact dynamics of a system of two independent harmonic oscillators coupled through their angular momentum. The exact analytic solution of the equations of motion for the field operators is derived, and the conditions for dynamical stability are obtained. As application, we examine the emergence of squeezing and mode entanglement for an arbitrary separable coherent initial state. It is shown that close to instability, the system develops considerable entanglement, which is accompanied with simultaneous squeezing in the coordinate of one oscillator and the momentum of the other oscillator. In contrast, for weak coupling away from instability, the generated entanglement is small, with weak alternating squeezing in the coordinate and momentum of each oscillator. Approximate expressions describing these regimes are also provided.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Física
squeezing
entanglement
coupled quantum oscillators
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/80687
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/80687
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Exact dynamics and squeezing in two harmonic modes coupled through angular momentumCanosa, Norma BeatrizSwapan, MandalRossignoli, Raúl DanteFísicasqueezingentanglementcoupled quantum oscillatorsWe investigate the exact dynamics of a system of two independent harmonic oscillators coupled through their angular momentum. The exact analytic solution of the equations of motion for the field operators is derived, and the conditions for dynamical stability are obtained. As application, we examine the emergence of squeezing and mode entanglement for an arbitrary separable coherent initial state. It is shown that close to instability, the system develops considerable entanglement, which is accompanied with simultaneous squeezing in the coordinate of one oscillator and the momentum of the other oscillator. In contrast, for weak coupling away from instability, the generated entanglement is small, with weak alternating squeezing in the coordinate and momentum of each oscillator. Approximate expressions describing these regimes are also provided.Facultad de Ciencias ExactasInstituto de Física La Plata2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/80687enginfo:eu-repo/semantics/altIdentifier/issn/1361-6455info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/48/16/165501info:eu-repo/semantics/altIdentifier/hdl/11746/9951info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:55:45Zoai:sedici.unlp.edu.ar:10915/80687Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:55:45.54SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
title Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
spellingShingle Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
Canosa, Norma Beatriz
Física
squeezing
entanglement
coupled quantum oscillators
title_short Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
title_full Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
title_fullStr Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
title_full_unstemmed Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
title_sort Exact dynamics and squeezing in two harmonic modes coupled through angular momentum
dc.creator.none.fl_str_mv Canosa, Norma Beatriz
Swapan, Mandal
Rossignoli, Raúl Dante
author Canosa, Norma Beatriz
author_facet Canosa, Norma Beatriz
Swapan, Mandal
Rossignoli, Raúl Dante
author_role author
author2 Swapan, Mandal
Rossignoli, Raúl Dante
author2_role author
author
dc.subject.none.fl_str_mv Física
squeezing
entanglement
coupled quantum oscillators
topic Física
squeezing
entanglement
coupled quantum oscillators
dc.description.none.fl_txt_mv We investigate the exact dynamics of a system of two independent harmonic oscillators coupled through their angular momentum. The exact analytic solution of the equations of motion for the field operators is derived, and the conditions for dynamical stability are obtained. As application, we examine the emergence of squeezing and mode entanglement for an arbitrary separable coherent initial state. It is shown that close to instability, the system develops considerable entanglement, which is accompanied with simultaneous squeezing in the coordinate of one oscillator and the momentum of the other oscillator. In contrast, for weak coupling away from instability, the generated entanglement is small, with weak alternating squeezing in the coordinate and momentum of each oscillator. Approximate expressions describing these regimes are also provided.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description We investigate the exact dynamics of a system of two independent harmonic oscillators coupled through their angular momentum. The exact analytic solution of the equations of motion for the field operators is derived, and the conditions for dynamical stability are obtained. As application, we examine the emergence of squeezing and mode entanglement for an arbitrary separable coherent initial state. It is shown that close to instability, the system develops considerable entanglement, which is accompanied with simultaneous squeezing in the coordinate of one oscillator and the momentum of the other oscillator. In contrast, for weak coupling away from instability, the generated entanglement is small, with weak alternating squeezing in the coordinate and momentum of each oscillator. Approximate expressions describing these regimes are also provided.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/80687
url http://sedici.unlp.edu.ar/handle/10915/80687
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1361-6455
info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/48/16/165501
info:eu-repo/semantics/altIdentifier/hdl/11746/9951
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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