Light-matter entanglement for hybrid quantum networks

This research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards t...

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Detalles Bibliográficos
Autor: Rego Falagán, Nuria
Tipo de recurso: tesis de maestría
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/423629
Acceso en línea:https://hdl.handle.net/2117/423629
Access Level:acceso abierto
Palabra clave:Quantum communication
Photonics
hybrid quantum networks
qubit conversion
quantum frequency conversion
Comunicació quàntica
Fotònica
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
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spelling Light-matter entanglement for hybrid quantum networksRego Falagán, NuriaQuantum communicationPhotonicshybrid quantum networksqubit conversionquantum frequency conversionComunicació quànticaFotònicaÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::FotònicaThis research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards this goal: the development of a qubit converter and quantum frequency conversion techniques. The qubit converter is built to transform polarization qubits from the cold atoms system into time-bin qubits to ensure compatibility with photons from the solid-state system. Then, quantum frequency conversion based on non-linear effects is studied to shift the 780nm entangled photon of the atomic system to the telecom C-band, aligning it with photons from the rare-earth ion-doped crystal experiment. This process is essential for conducting the Bell-state measurement required for remote entanglement generation.Universitat Politècnica de CatalunyaDe Riedmatten, HuguesHoffet, Felix20242024-09-0920252025-02-07master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/423629reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4236292026-05-27T15:37:01Z
dc.title.none.fl_str_mv Light-matter entanglement for hybrid quantum networks
title Light-matter entanglement for hybrid quantum networks
spellingShingle Light-matter entanglement for hybrid quantum networks
Rego Falagán, Nuria
Quantum communication
Photonics
hybrid quantum networks
qubit conversion
quantum frequency conversion
Comunicació quàntica
Fotònica
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
title_short Light-matter entanglement for hybrid quantum networks
title_full Light-matter entanglement for hybrid quantum networks
title_fullStr Light-matter entanglement for hybrid quantum networks
title_full_unstemmed Light-matter entanglement for hybrid quantum networks
title_sort Light-matter entanglement for hybrid quantum networks
dc.creator.none.fl_str_mv Rego Falagán, Nuria
author Rego Falagán, Nuria
author_facet Rego Falagán, Nuria
author_role author
dc.contributor.none.fl_str_mv De Riedmatten, Hugues
Hoffet, Felix
dc.subject.none.fl_str_mv Quantum communication
Photonics
hybrid quantum networks
qubit conversion
quantum frequency conversion
Comunicació quàntica
Fotònica
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
topic Quantum communication
Photonics
hybrid quantum networks
qubit conversion
quantum frequency conversion
Comunicació quàntica
Fotònica
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
description This research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards this goal: the development of a qubit converter and quantum frequency conversion techniques. The qubit converter is built to transform polarization qubits from the cold atoms system into time-bin qubits to ensure compatibility with photons from the solid-state system. Then, quantum frequency conversion based on non-linear effects is studied to shift the 780nm entangled photon of the atomic system to the telecom C-band, aligning it with photons from the rare-earth ion-doped crystal experiment. This process is essential for conducting the Bell-state measurement required for remote entanglement generation.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-09-09
2025
2025-02-07
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/423629
url https://hdl.handle.net/2117/423629
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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