Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente
ilustraciones, graficas, tablas
- Autores:
-
Anamaría, García Hernández
- Tipo de recurso:
- Fecha de publicación:
- 2021
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/81556
- Palabra clave:
- 530 - Física
Pureza
Sistemas cuánticos entrelazados
Conversión Paramétrica Espontánea Descendente
Correlaciones
Óptica cuántica
Modos Hermite-Gauss
Purity
Entangled quantum systems
Spontaneous Parametric Down Conversion (SPDC)
Correlations
Quantum optics
Hermite-Gauss modes
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 4.0 Internacional
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|
dc.title.none.fl_str_mv |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
dc.title.translated.eng.fl_str_mv |
Purity of gaussian and non-gaussian states obtained by spontaneous parametric down conversion |
title |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
spellingShingle |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente 530 - Física Pureza Sistemas cuánticos entrelazados Conversión Paramétrica Espontánea Descendente Correlaciones Óptica cuántica Modos Hermite-Gauss Purity Entangled quantum systems Spontaneous Parametric Down Conversion (SPDC) Correlations Quantum optics Hermite-Gauss modes |
title_short |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
title_full |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
title_fullStr |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
title_full_unstemmed |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
title_sort |
Pureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendente |
dc.creator.fl_str_mv |
Anamaría, García Hernández |
dc.contributor.advisor.none.fl_str_mv |
Karen Milena, Fonseca Romero |
dc.contributor.author.none.fl_str_mv |
Anamaría, García Hernández |
dc.subject.ddc.spa.fl_str_mv |
530 - Física |
topic |
530 - Física Pureza Sistemas cuánticos entrelazados Conversión Paramétrica Espontánea Descendente Correlaciones Óptica cuántica Modos Hermite-Gauss Purity Entangled quantum systems Spontaneous Parametric Down Conversion (SPDC) Correlations Quantum optics Hermite-Gauss modes |
dc.subject.proposal.spa.fl_str_mv |
Pureza Sistemas cuánticos entrelazados Conversión Paramétrica Espontánea Descendente Correlaciones Óptica cuántica Modos Hermite-Gauss |
dc.subject.proposal.eng.fl_str_mv |
Purity Entangled quantum systems Spontaneous Parametric Down Conversion (SPDC) Correlations Quantum optics Hermite-Gauss modes |
description |
ilustraciones, graficas, tablas |
publishDate |
2021 |
dc.date.issued.none.fl_str_mv |
2021 |
dc.date.accessioned.none.fl_str_mv |
2022-06-10T14:43:25Z |
dc.date.available.none.fl_str_mv |
2022-06-10T14:43:25Z |
dc.type.spa.fl_str_mv |
Trabajo de grado - Maestría |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/masterThesis |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/acceptedVersion |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/TM |
status_str |
acceptedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/81556 |
dc.identifier.instname.spa.fl_str_mv |
Universidad Nacional de Colombia |
dc.identifier.reponame.spa.fl_str_mv |
Repositorio Institucional Universidad Nacional de Colombia |
dc.identifier.repourl.spa.fl_str_mv |
https://repositorio.unal.edu.co/ |
url |
https://repositorio.unal.edu.co/handle/unal/81556 https://repositorio.unal.edu.co/ |
identifier_str_mv |
Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.references.spa.fl_str_mv |
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Boykin. «Derivatives of the Dirac delta function by explicit construction of sequences». En: American Journal of Physics 71 (5 mayo de 2003), págs. 462-468. ISSN: 0002-9505. DOI: 10.1119/1.1557302. URL: http://aapt.scitation.org/ doi/10.1119/1.1557302. |
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Atribución-NoComercial-SinDerivadas 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Karen Milena, Fonseca Romero57f9c9f2a9fe23db990a730505a02cfdAnamaría, García Hernándeze612b822385965eac3d2f6d19187d9042022-06-10T14:43:25Z2022-06-10T14:43:25Z2021https://repositorio.unal.edu.co/handle/unal/81556Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, graficas, tablasLos pares de fotones entrelazados obtenidos con el fenómeno de la Conversión Paramétrica Espontánea Descendente (SPDC, Spontaneous Parametric Down Conversion) se encuentran en un estado compuesto denominado bifotón, de especial interés en aplicaciones de información y comunicación cuántica. Los bifotones pueden utilizarse como fuente de entrelazamiento o como fuente de fotones individuales por medio de anunciamiento, caso en el cual es deseable minimizar las correlaciones entre los subsistemas del bifotón. En este trabajo se utiliza la pureza como testigo de las correlaciones entre subsistemas de grados de libertad espaciales y espectrales del bifotón, usando una configuración de SPDC colineal tipo II con un haz de bombeo asociado a los primeros modos de Hermite-Gauss. Se calculó la pureza asociada al espacio y la frecuencia de ambos fotones y también a características individuales de cada uno, para diferentes conjuntos de parámetros experimentales. Se halló que existe una cota superior de las purezas al utilizar un estado gaussiano (en este documento, esto quiere decir con un haz de bombeo en el modo HGnm con n, m = 0) respecto a los no-gaussianos (n o m 6= 0). Se encuentra una respuesta asimétrica al filtrado espacial y espectral sobre cada fotón y a los índices n, m de los modos de Hermite-Gauss del fotón de bombeo. Se encontró que para maximizar la pureza utilizando un haz Hermite-Gauss el haz de bombeo debe tener una cintura delgada y un índice n = 0, mientras que el filtrado espacial sobre los fotones entrelazados debe ser asimétrico. Esto es particularmente claro cuando los índices n o m 6= 0. Finalmente, se estudiaron las consecuencias de utilizar un filtro Hermite-Gauss sobre uno de los fotones, resultados que pueden utilizarse para desarrollar fuentes de fotones anunciados con modos ópticos espaciales no-gaussianos. (Texto tomado de la fuente)The entangled photon pairs obtained by Spontaneous Parametric Down Conversion (SPDC) are in a joint state named biphoton, used in diverse quantum information and communication applications. Biphotons can be used as an entanglement source and as a single-photon source using heralding, in which case it would be desirable to minimize the correlations between photon subsystems. In this work we use purity as a witness of spatial and spectral correlations in an collinear SPDC type II configuration, with a low-order Hermite-Gauss pump beam. Purity associated to space and frequency of both photons, and also to individual characteristics was calculated for different sets of experimental parameters. An upper bound was found using gaussian states (in this work, this means using a pump beam HGnm with n, m = 0) compared to non-gaussian states (n o m 6= 0). We found an asymmetric response to spatial and spectral filtering over each photon and also to the indices n, m of the pump beam. We also found that to maximize purity using an Hermite-Gauss pump beam, the beam has to have narrow waist and an index n = 0, and the spatial filtering applied over the entangled photons has to be asymmetric. This is particularly clear when n o m 6= 0. Finally, we investigated the consequences of using an Hermite-Gauss spatial filter over one of the twin photons, study which can be used to set up a single-photon source with non-gaussian optical modes.MaestríaMagíster en Ciencias - Físicaxix, 153 páginasapplication/pdfspaUniversidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - FísicaDepartamento de FísicaFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá530 - FísicaPurezaSistemas cuánticos entrelazadosConversión Paramétrica Espontánea DescendenteCorrelacionesÓptica cuánticaModos Hermite-GaussPurityEntangled quantum systemsSpontaneous Parametric Down Conversion (SPDC)CorrelationsQuantum opticsHermite-Gauss modesPureza de estados gaussianos y no-gaussianos obtenidos a partir de conversión paramétrica espontánea descendentePurity of gaussian and non-gaussian states obtained by spontaneous parametric down conversionTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMDaniel M. 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URL: http://aapt.scitation.org/ doi/10.1119/1.1557302.MaestrosProveedores de ayuda financiera para estudiantesPúblico generalORIGINAL1032473772.2021 - Anamaría García Hernández.pdf1032473772.2021 - Anamaría García Hernández.pdfTesis de Maestría en Ciencias - Físicaapplication/pdf13108591https://repositorio.unal.edu.co/bitstream/unal/81556/1/1032473772.2021%20-%20Anamar%c3%ada%20Garc%c3%ada%20Hern%c3%a1ndez.pdfc70d19a4b24fff1c23cdf739a6d2a485MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-84074https://repositorio.unal.edu.co/bitstream/unal/81556/2/license.txt8153f7789df02f0a4c9e079953658ab2MD52THUMBNAIL1032473772.2021 - Anamaría García Hernández.pdf.jpg1032473772.2021 - Anamaría García Hernández.pdf.jpgGenerated Thumbnailimage/jpeg5114https://repositorio.unal.edu.co/bitstream/unal/81556/3/1032473772.2021%20-%20Anamar%c3%ada%20Garc%c3%ada%20Hern%c3%a1ndez.pdf.jpga03c4ac644a21d1244d90b3cd31fab53MD53unal/81556oai:repositorio.unal.edu.co:unal/815562024-08-06 23:10:13.459Repositorio 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EVESURBIFBPUiBMQSBTRUNSRVRBUsONQSBHRU5FUkFMLiAqTEEgVEVTSVMgQSBQVUJMSUNBUiBERUJFIFNFUiBMQSBWRVJTScOTTiBGSU5BTCBBUFJPQkFEQS4gCgpBbCBoYWNlciBjbGljIGVuIGVsIHNpZ3VpZW50ZSBib3TDs24sIHVzdGVkIGluZGljYSBxdWUgZXN0w6EgZGUgYWN1ZXJkbyBjb24gZXN0b3MgdMOpcm1pbm9zLiBTaSB0aWVuZSBhbGd1bmEgZHVkYSBzb2JyZSBsYSBsaWNlbmNpYSwgcG9yIGZhdm9yLCBjb250YWN0ZSBjb24gZWwgYWRtaW5pc3RyYWRvciBkZWwgc2lzdGVtYS4KClVOSVZFUlNJREFEIE5BQ0lPTkFMIERFIENPTE9NQklBIC0gw5psdGltYSBtb2RpZmljYWNpw7NuIDE5LzEwLzIwMjEK 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