Distributing multipartite entanglement over noisy quantum networks
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/28187 |
Resumo: | A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better applications for communications, sensing, and computation. In this work, we present an algorithm for generating multipartite entanglement between different nodes of a quantum network with noisy quantum repeaters and imperfect quantum memories, where the links are entangled pairs. Our algorithm is optimal for GHZ states with 3 qubits, maximising simultaneously the final state fidelity and the rate of entanglement distribution. Furthermore, we determine the conditions yielding this simultaneous optimality for GHZ states with a higher number of qubits, and for other types of multipartite entanglement. Our algorithm is general also in the sense that it can optimize simultaneously arbitrary parameters. This work opens the way to optimally generate multipartite quantum correlations over noisy quantum networks, an important resource for distributed quantum technologies. |
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Distributing multipartite entanglement over noisy quantum networksRoutingQuantum networksMultipartiteEntanglementA quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better applications for communications, sensing, and computation. In this work, we present an algorithm for generating multipartite entanglement between different nodes of a quantum network with noisy quantum repeaters and imperfect quantum memories, where the links are entangled pairs. Our algorithm is optimal for GHZ states with 3 qubits, maximising simultaneously the final state fidelity and the rate of entanglement distribution. Furthermore, we determine the conditions yielding this simultaneous optimality for GHZ states with a higher number of qubits, and for other types of multipartite entanglement. Our algorithm is general also in the sense that it can optimize simultaneously arbitrary parameters. This work opens the way to optimally generate multipartite quantum correlations over noisy quantum networks, an important resource for distributed quantum technologies.Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften2023-03-03T17:34:40Z2023-01-01T00:00:00Z20232023-03-03T17:34:08Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/28187eng2521-327X10.22331/q-2023-02-09-920Bugalho. L.Coutinho, B. C.Monteiro, F. A.Omar, Y.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:36:16Zoai:repositorio.iscte-iul.pt:10071/28187Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:16:28.019691Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Distributing multipartite entanglement over noisy quantum networks |
title |
Distributing multipartite entanglement over noisy quantum networks |
spellingShingle |
Distributing multipartite entanglement over noisy quantum networks Bugalho. L. Routing Quantum networks Multipartite Entanglement |
title_short |
Distributing multipartite entanglement over noisy quantum networks |
title_full |
Distributing multipartite entanglement over noisy quantum networks |
title_fullStr |
Distributing multipartite entanglement over noisy quantum networks |
title_full_unstemmed |
Distributing multipartite entanglement over noisy quantum networks |
title_sort |
Distributing multipartite entanglement over noisy quantum networks |
author |
Bugalho. L. |
author_facet |
Bugalho. L. Coutinho, B. C. Monteiro, F. A. Omar, Y. |
author_role |
author |
author2 |
Coutinho, B. C. Monteiro, F. A. Omar, Y. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bugalho. L. Coutinho, B. C. Monteiro, F. A. Omar, Y. |
dc.subject.por.fl_str_mv |
Routing Quantum networks Multipartite Entanglement |
topic |
Routing Quantum networks Multipartite Entanglement |
description |
A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better applications for communications, sensing, and computation. In this work, we present an algorithm for generating multipartite entanglement between different nodes of a quantum network with noisy quantum repeaters and imperfect quantum memories, where the links are entangled pairs. Our algorithm is optimal for GHZ states with 3 qubits, maximising simultaneously the final state fidelity and the rate of entanglement distribution. Furthermore, we determine the conditions yielding this simultaneous optimality for GHZ states with a higher number of qubits, and for other types of multipartite entanglement. Our algorithm is general also in the sense that it can optimize simultaneously arbitrary parameters. This work opens the way to optimally generate multipartite quantum correlations over noisy quantum networks, an important resource for distributed quantum technologies. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-03-03T17:34:40Z 2023-01-01T00:00:00Z 2023 2023-03-03T17:34:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10071/28187 |
url |
http://hdl.handle.net/10071/28187 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2521-327X 10.22331/q-2023-02-09-920 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften |
publisher.none.fl_str_mv |
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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