Cavity-enhanced spin-wave solid-state quantum memory

We report on the realization of an efficient solid-state spin-wave quantum memory, with on-demand readout, using the full atomic frequency comb (AFC) scheme in a Pr3+:Y2¿SiO5 crystal embedded in an impedance-matched cavity. We demonstrate operation at the single-photon level by storing weak coherent...

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Detalles Bibliográficos
Autores: Feldmann, Leo Daniel, Wengerowsky, Sören, Das, Antariksha, Duranti, Stefano, Hanni, Jonathan Roman Louis, Grandi, Samuele, de Riedmatten, Hugues
Tipo de recurso: artículo
Fecha de publicación:2025
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:2117/443325
Acceso en línea:https://hdl.handle.net/2117/443325
https://dx.doi.org/10.1103/8l9k-12k2
Access Level:acceso abierto
Palabra clave:Solid-state spin-wave
Quantum memory
On-demand readout
Impedance-matched cavity
Single-photon level
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
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spelling Cavity-enhanced spin-wave solid-state quantum memoryFeldmann, Leo DanielWengerowsky, SörenDas, AntarikshaDuranti, StefanoHanni, Jonathan Roman LouisGrandi, Samuelede Riedmatten, HuguesSolid-state spin-waveQuantum memoryOn-demand readoutImpedance-matched cavitySingle-photon levelÀrees temàtiques de la UPC::Ciències de la visió::Òptica físicaÀrees temàtiques de la UPC::Ciències de la visió::Òptica físicaWe report on the realization of an efficient solid-state spin-wave quantum memory, with on-demand readout, using the full atomic frequency comb (AFC) scheme in a Pr3+:Y2¿SiO5 crystal embedded in an impedance-matched cavity. We demonstrate operation at the single-photon level by storing weak coherent states with an efficiency up to (40±2)% and a signal-to-noise ratio of 14 for an input photon number of 0.42 photons per pulse. We also investigated the enhancement of the incoherent noise due to the impedance-matched cavity and characterized the quantum memory performance, showing a two-way transfer from excited to spin states and back of up to 83%. Finally, we confirmed the quantum nature of our memory by storing nonclassical states of light, i.e., a heralded single photon from a nondegenerate spontaneous parametric down-conversion source, and achieved nonclassical correlations between the heralding and the stored-and-retrieved photon. These results demonstrate that impedance-matched AFC spin-wave quantum memories with on-demand readout can be used for experiments involving the storage of photonic quantum states. They also open the door to solid-state on-demand quantum memories with very high efficiencies, serving as a key resource for quantum networks and quantum repeaters.American Institute of Physics (AIP)20252025-09-1720252025-10-08journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/443325https://dx.doi.org/10.1103/8l9k-12k2reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4433252026-05-27T15:37:01Z
dc.title.none.fl_str_mv Cavity-enhanced spin-wave solid-state quantum memory
title Cavity-enhanced spin-wave solid-state quantum memory
spellingShingle Cavity-enhanced spin-wave solid-state quantum memory
Feldmann, Leo Daniel
Solid-state spin-wave
Quantum memory
On-demand readout
Impedance-matched cavity
Single-photon level
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
title_short Cavity-enhanced spin-wave solid-state quantum memory
title_full Cavity-enhanced spin-wave solid-state quantum memory
title_fullStr Cavity-enhanced spin-wave solid-state quantum memory
title_full_unstemmed Cavity-enhanced spin-wave solid-state quantum memory
title_sort Cavity-enhanced spin-wave solid-state quantum memory
dc.creator.none.fl_str_mv Feldmann, Leo Daniel
Wengerowsky, Sören
Das, Antariksha
Duranti, Stefano
Hanni, Jonathan Roman Louis
Grandi, Samuele
de Riedmatten, Hugues
author Feldmann, Leo Daniel
author_facet Feldmann, Leo Daniel
Wengerowsky, Sören
Das, Antariksha
Duranti, Stefano
Hanni, Jonathan Roman Louis
Grandi, Samuele
de Riedmatten, Hugues
author_role author
author2 Wengerowsky, Sören
Das, Antariksha
Duranti, Stefano
Hanni, Jonathan Roman Louis
Grandi, Samuele
de Riedmatten, Hugues
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Solid-state spin-wave
Quantum memory
On-demand readout
Impedance-matched cavity
Single-photon level
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
topic Solid-state spin-wave
Quantum memory
On-demand readout
Impedance-matched cavity
Single-photon level
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
Àrees temàtiques de la UPC::Ciències de la visió::Òptica física
description We report on the realization of an efficient solid-state spin-wave quantum memory, with on-demand readout, using the full atomic frequency comb (AFC) scheme in a Pr3+:Y2¿SiO5 crystal embedded in an impedance-matched cavity. We demonstrate operation at the single-photon level by storing weak coherent states with an efficiency up to (40±2)% and a signal-to-noise ratio of 14 for an input photon number of 0.42 photons per pulse. We also investigated the enhancement of the incoherent noise due to the impedance-matched cavity and characterized the quantum memory performance, showing a two-way transfer from excited to spin states and back of up to 83%. Finally, we confirmed the quantum nature of our memory by storing nonclassical states of light, i.e., a heralded single photon from a nondegenerate spontaneous parametric down-conversion source, and achieved nonclassical correlations between the heralding and the stored-and-retrieved photon. These results demonstrate that impedance-matched AFC spin-wave quantum memories with on-demand readout can be used for experiments involving the storage of photonic quantum states. They also open the door to solid-state on-demand quantum memories with very high efficiencies, serving as a key resource for quantum networks and quantum repeaters.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-09-17
2025
2025-10-08
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/443325
https://dx.doi.org/10.1103/8l9k-12k2
url https://hdl.handle.net/2117/443325
https://dx.doi.org/10.1103/8l9k-12k2
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics (AIP)
publisher.none.fl_str_mv American Institute of Physics (AIP)
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 15,811543

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