Entanglement of two harmonic modes coupled by angular momentum
- Autores
- Rebón, Lorena; Rossignoli, Raúl Dante
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We examine the entanglement induced by an angular momentum coupling between two harmonic systems. The Hamiltonian corresponds to that of a charged particle in a uniform magnetic field in an anisotropic quadratic potential or, equivalently, to that of a particle in a rotating quadratic potential. We analyze both the vacuum and thermal entanglement, thereby obtaining analytic expressions for the entanglement entropy and negativity through the Gaussian state formalism. It is shown that vacuum entanglement diverges at the edges of the dynamically stable sectors, increasing with the angular momentum and saturating for strong fields, whereas at finite temperature entanglement is nonzero just within a finite field or frequency window and no longer diverges. Moreover, the limit temperature for entanglement is finite in the whole stable domain. The thermal behavior of the Gaussian quantum discord and its difference from the negativity is also discussed.
Instituto de Física La Plata - Materia
-
Física
Quantum entanglement
Physics
Quantum discord
Angular momentum
Quantum state
Amplitude damping channel
Angular momentum coupling
Quantum electrodynamics
Squashed entanglement
Total angular momentum quantum number
Quantum mechanics - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/126316
Ver los metadatos del registro completo
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Entanglement of two harmonic modes coupled by angular momentumRebón, LorenaRossignoli, Raúl DanteFísicaQuantum entanglementPhysicsQuantum discordAngular momentumQuantum stateAmplitude damping channelAngular momentum couplingQuantum electrodynamicsSquashed entanglementTotal angular momentum quantum numberQuantum mechanicsWe examine the entanglement induced by an angular momentum coupling between two harmonic systems. The Hamiltonian corresponds to that of a charged particle in a uniform magnetic field in an anisotropic quadratic potential or, equivalently, to that of a particle in a rotating quadratic potential. We analyze both the vacuum and thermal entanglement, thereby obtaining analytic expressions for the entanglement entropy and negativity through the Gaussian state formalism. It is shown that vacuum entanglement diverges at the edges of the dynamically stable sectors, increasing with the angular momentum and saturating for strong fields, whereas at finite temperature entanglement is nonzero just within a finite field or frequency window and no longer diverges. Moreover, the limit temperature for entanglement is finite in the whole stable domain. The thermal behavior of the Gaussian quantum discord and its difference from the negativity is also discussed.Instituto de Física La Plata2011-11-18info: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/10915/126316enginfo:eu-repo/semantics/altIdentifier/issn/1050-2947info:eu-repo/semantics/altIdentifier/issn/1094-1622info:eu-repo/semantics/altIdentifier/arxiv/1112.1441v1info:eu-repo/semantics/altIdentifier/doi/10.1103/physreva.84.052320info: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:UNLP2025-09-29T11:30:23Zoai:sedici.unlp.edu.ar:10915/126316Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:24.029SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Entanglement of two harmonic modes coupled by angular momentum |
| title |
Entanglement of two harmonic modes coupled by angular momentum |
| spellingShingle |
Entanglement of two harmonic modes coupled by angular momentum Rebón, Lorena Física Quantum entanglement Physics Quantum discord Angular momentum Quantum state Amplitude damping channel Angular momentum coupling Quantum electrodynamics Squashed entanglement Total angular momentum quantum number Quantum mechanics |
| title_short |
Entanglement of two harmonic modes coupled by angular momentum |
| title_full |
Entanglement of two harmonic modes coupled by angular momentum |
| title_fullStr |
Entanglement of two harmonic modes coupled by angular momentum |
| title_full_unstemmed |
Entanglement of two harmonic modes coupled by angular momentum |
| title_sort |
Entanglement of two harmonic modes coupled by angular momentum |
| dc.creator.none.fl_str_mv |
Rebón, Lorena Rossignoli, Raúl Dante |
| author |
Rebón, Lorena |
| author_facet |
Rebón, Lorena Rossignoli, Raúl Dante |
| author_role |
author |
| author2 |
Rossignoli, Raúl Dante |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Física Quantum entanglement Physics Quantum discord Angular momentum Quantum state Amplitude damping channel Angular momentum coupling Quantum electrodynamics Squashed entanglement Total angular momentum quantum number Quantum mechanics |
| topic |
Física Quantum entanglement Physics Quantum discord Angular momentum Quantum state Amplitude damping channel Angular momentum coupling Quantum electrodynamics Squashed entanglement Total angular momentum quantum number Quantum mechanics |
| dc.description.none.fl_txt_mv |
We examine the entanglement induced by an angular momentum coupling between two harmonic systems. The Hamiltonian corresponds to that of a charged particle in a uniform magnetic field in an anisotropic quadratic potential or, equivalently, to that of a particle in a rotating quadratic potential. We analyze both the vacuum and thermal entanglement, thereby obtaining analytic expressions for the entanglement entropy and negativity through the Gaussian state formalism. It is shown that vacuum entanglement diverges at the edges of the dynamically stable sectors, increasing with the angular momentum and saturating for strong fields, whereas at finite temperature entanglement is nonzero just within a finite field or frequency window and no longer diverges. Moreover, the limit temperature for entanglement is finite in the whole stable domain. The thermal behavior of the Gaussian quantum discord and its difference from the negativity is also discussed. Instituto de Física La Plata |
| description |
We examine the entanglement induced by an angular momentum coupling between two harmonic systems. The Hamiltonian corresponds to that of a charged particle in a uniform magnetic field in an anisotropic quadratic potential or, equivalently, to that of a particle in a rotating quadratic potential. We analyze both the vacuum and thermal entanglement, thereby obtaining analytic expressions for the entanglement entropy and negativity through the Gaussian state formalism. It is shown that vacuum entanglement diverges at the edges of the dynamically stable sectors, increasing with the angular momentum and saturating for strong fields, whereas at finite temperature entanglement is nonzero just within a finite field or frequency window and no longer diverges. Moreover, the limit temperature for entanglement is finite in the whole stable domain. The thermal behavior of the Gaussian quantum discord and its difference from the negativity is also discussed. |
| publishDate |
2011 |
| dc.date.none.fl_str_mv |
2011-11-18 |
| 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 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/126316 |
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eng |
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eng |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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