Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UnB |
Texto Completo: | http://repositorio2.unb.br/jspui/handle/10482/46962 https://doi.org/10.3390/e25060901 https://orcid.org/0000-0003-4288-5399 https://orcid.org/0000-0001-5291-657X https://orcid.org/0000-0002-7142-7453 |
Resumo: | We propose a scheme for the generation of photons from a vacuum via time-modulation of a quantum system indirectly coupled to the cavity field through some ancilla quantum subsystem. We consider the simplest case when the modulation is applied to an artificial two-level atom (we call ‘t-qubit’, that can be located even outside the cavity), while the ancilla is a stationary qubit coupled via the dipole interaction both to the cavity and t-qubit. We find that tripartite entangled states with a small number of photons can be generated from the system ground state under resonant modulations, even when the t-qubit is far detuned from both the ancilla and the cavity, provided its bare and modulation frequencies are properly adjusted. We attest our approximate analytic results by numeric simulations and show that photon generation from vacuum persists in the presence of common dissipation mechanisms. |
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Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubitFótonModulação temporalFísica quânticaWe propose a scheme for the generation of photons from a vacuum via time-modulation of a quantum system indirectly coupled to the cavity field through some ancilla quantum subsystem. We consider the simplest case when the modulation is applied to an artificial two-level atom (we call ‘t-qubit’, that can be located even outside the cavity), while the ancilla is a stationary qubit coupled via the dipole interaction both to the cavity and t-qubit. We find that tripartite entangled states with a small number of photons can be generated from the system ground state under resonant modulations, even when the t-qubit is far detuned from both the ancilla and the cavity, provided its bare and modulation frequencies are properly adjusted. We attest our approximate analytic results by numeric simulations and show that photon generation from vacuum persists in the presence of common dissipation mechanisms.Instituto de Física (IF)MDPIUniversity of Brasilia, Institute of PhysicsUniversity of Brasilia, Institute of PhysicsUniversity of Brasilia, Institute of PhysicsUniversity of Brasilia, Institute of Physics, International Center of PhysicsPaula, Marcos Vinícius Silva deSinésio, William Wenner TeixeiraDodonov, Alexandre2023-12-07T11:39:48Z2023-12-07T11:39:48Z2023-06-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPAULA, Marcos V. S. de; SINESIO, William W. T.; DODONOV, Alexandre V. Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit. Entropy, [S. l.], v. 25, n. 6, 901, 2023. DOI: https://doi.org/10.3390/e25060901. Disponível em: https://www.mdpi.com/1099-4300/25/6/901. Acesso em: 07 dez. 2023.http://repositorio2.unb.br/jspui/handle/10482/46962https://doi.org/10.3390/e25060901https://orcid.org/0000-0003-4288-5399https://orcid.org/0000-0001-5291-657Xhttps://orcid.org/0000-0002-7142-7453eng© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNB2023-12-07T11:39:48Zoai:repositorio.unb.br:10482/46962Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-12-07T11:39:48Repositório Institucional da UnB - Universidade de Brasília (UnB)false |
dc.title.none.fl_str_mv |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
title |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
spellingShingle |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit Paula, Marcos Vinícius Silva de Fóton Modulação temporal Física quântica |
title_short |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
title_full |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
title_fullStr |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
title_full_unstemmed |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
title_sort |
Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit |
author |
Paula, Marcos Vinícius Silva de |
author_facet |
Paula, Marcos Vinícius Silva de Sinésio, William Wenner Teixeira Dodonov, Alexandre |
author_role |
author |
author2 |
Sinésio, William Wenner Teixeira Dodonov, Alexandre |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
University of Brasilia, Institute of Physics University of Brasilia, Institute of Physics University of Brasilia, Institute of Physics University of Brasilia, Institute of Physics, International Center of Physics |
dc.contributor.author.fl_str_mv |
Paula, Marcos Vinícius Silva de Sinésio, William Wenner Teixeira Dodonov, Alexandre |
dc.subject.por.fl_str_mv |
Fóton Modulação temporal Física quântica |
topic |
Fóton Modulação temporal Física quântica |
description |
We propose a scheme for the generation of photons from a vacuum via time-modulation of a quantum system indirectly coupled to the cavity field through some ancilla quantum subsystem. We consider the simplest case when the modulation is applied to an artificial two-level atom (we call ‘t-qubit’, that can be located even outside the cavity), while the ancilla is a stationary qubit coupled via the dipole interaction both to the cavity and t-qubit. We find that tripartite entangled states with a small number of photons can be generated from the system ground state under resonant modulations, even when the t-qubit is far detuned from both the ancilla and the cavity, provided its bare and modulation frequencies are properly adjusted. We attest our approximate analytic results by numeric simulations and show that photon generation from vacuum persists in the presence of common dissipation mechanisms. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-12-07T11:39:48Z 2023-12-07T11:39:48Z 2023-06-06 |
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 |
PAULA, Marcos V. S. de; SINESIO, William W. T.; DODONOV, Alexandre V. Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit. Entropy, [S. l.], v. 25, n. 6, 901, 2023. DOI: https://doi.org/10.3390/e25060901. Disponível em: https://www.mdpi.com/1099-4300/25/6/901. Acesso em: 07 dez. 2023. http://repositorio2.unb.br/jspui/handle/10482/46962 https://doi.org/10.3390/e25060901 https://orcid.org/0000-0003-4288-5399 https://orcid.org/0000-0001-5291-657X https://orcid.org/0000-0002-7142-7453 |
identifier_str_mv |
PAULA, Marcos V. S. de; SINESIO, William W. T.; DODONOV, Alexandre V. Ancilla-assisted generation of photons from vacuum via time-modulation of extracavity qubit. Entropy, [S. l.], v. 25, n. 6, 901, 2023. DOI: https://doi.org/10.3390/e25060901. Disponível em: https://www.mdpi.com/1099-4300/25/6/901. Acesso em: 07 dez. 2023. |
url |
http://repositorio2.unb.br/jspui/handle/10482/46962 https://doi.org/10.3390/e25060901 https://orcid.org/0000-0003-4288-5399 https://orcid.org/0000-0001-5291-657X https://orcid.org/0000-0002-7142-7453 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UnB instname:Universidade de Brasília (UnB) instacron:UNB |
instname_str |
Universidade de Brasília (UnB) |
instacron_str |
UNB |
institution |
UNB |
reponame_str |
Repositório Institucional da UnB |
collection |
Repositório Institucional da UnB |
repository.name.fl_str_mv |
Repositório Institucional da UnB - Universidade de Brasília (UnB) |
repository.mail.fl_str_mv |
repositorio@unb.br |
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1810580753103192064 |