Time-invariant discord in dynamically decoupled systems
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.92.062109 http://hdl.handle.net/11449/168215 |
Resumo: | Dynamical decoupling protocols are one of the most used tools for efficient quantum error corrections and for reservoir engineering. In this paper we study the effect of dynamical decoupling pulses on the preservation of both quantum and classical correlations, and their influence on the intriguing phenomenon of time-invariant discord. We study two qubits experiencing local dephasing with an Ohmic class spectrum and subject to dynamical decoupling protocols. We investigate the connection between the dynamics of both classical and quantum correlations and the behavior of information flow between system and environment. Finally, we establish a set of necessary conditions for which time-invariant discord can be created using dynamically decoupling techniques. |
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Time-invariant discord in dynamically decoupled systemsDynamical decoupling protocols are one of the most used tools for efficient quantum error corrections and for reservoir engineering. In this paper we study the effect of dynamical decoupling pulses on the preservation of both quantum and classical correlations, and their influence on the intriguing phenomenon of time-invariant discord. We study two qubits experiencing local dephasing with an Ohmic class spectrum and subject to dynamical decoupling protocols. We investigate the connection between the dynamics of both classical and quantum correlations and the behavior of information flow between system and environment. Finally, we establish a set of necessary conditions for which time-invariant discord can be created using dynamically decoupling techniques.SUPA EPS/Physics Heriot-Watt UniversityTurku Center for Quantum Physics Department of Physics and Astronomy University of TurkuFaculdade de Ciências UNESP-Universidade Estadual PaulistaFaculdade de Ciências UNESP-Universidade Estadual PaulistaHeriot-Watt UniversityUniversity of TurkuUniversidade Estadual Paulista (Unesp)Addis, CaroleKarpat, Göktuʇ [UNESP]Maniscalco, Sabrina2018-12-11T16:40:17Z2018-12-11T16:40:17Z2015-12-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1103/PhysRevA.92.062109Physical Review A - Atomic, Molecular, and Optical Physics, v. 92, n. 6, 2015.1094-16221050-2947http://hdl.handle.net/11449/16821510.1103/PhysRevA.92.0621092-s2.0-849501381982-s2.0-84950138198.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review A - Atomic, Molecular, and Optical Physics1,2881,288info:eu-repo/semantics/openAccess2024-01-29T06:29:29Zoai:repositorio.unesp.br:11449/168215Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:13:47.438463Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Time-invariant discord in dynamically decoupled systems |
title |
Time-invariant discord in dynamically decoupled systems |
spellingShingle |
Time-invariant discord in dynamically decoupled systems Addis, Carole |
title_short |
Time-invariant discord in dynamically decoupled systems |
title_full |
Time-invariant discord in dynamically decoupled systems |
title_fullStr |
Time-invariant discord in dynamically decoupled systems |
title_full_unstemmed |
Time-invariant discord in dynamically decoupled systems |
title_sort |
Time-invariant discord in dynamically decoupled systems |
author |
Addis, Carole |
author_facet |
Addis, Carole Karpat, Göktuʇ [UNESP] Maniscalco, Sabrina |
author_role |
author |
author2 |
Karpat, Göktuʇ [UNESP] Maniscalco, Sabrina |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Heriot-Watt University University of Turku Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Addis, Carole Karpat, Göktuʇ [UNESP] Maniscalco, Sabrina |
description |
Dynamical decoupling protocols are one of the most used tools for efficient quantum error corrections and for reservoir engineering. In this paper we study the effect of dynamical decoupling pulses on the preservation of both quantum and classical correlations, and their influence on the intriguing phenomenon of time-invariant discord. We study two qubits experiencing local dephasing with an Ohmic class spectrum and subject to dynamical decoupling protocols. We investigate the connection between the dynamics of both classical and quantum correlations and the behavior of information flow between system and environment. Finally, we establish a set of necessary conditions for which time-invariant discord can be created using dynamically decoupling techniques. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-07 2018-12-11T16:40:17Z 2018-12-11T16:40:17Z |
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://dx.doi.org/10.1103/PhysRevA.92.062109 Physical Review A - Atomic, Molecular, and Optical Physics, v. 92, n. 6, 2015. 1094-1622 1050-2947 http://hdl.handle.net/11449/168215 10.1103/PhysRevA.92.062109 2-s2.0-84950138198 2-s2.0-84950138198.pdf |
url |
http://dx.doi.org/10.1103/PhysRevA.92.062109 http://hdl.handle.net/11449/168215 |
identifier_str_mv |
Physical Review A - Atomic, Molecular, and Optical Physics, v. 92, n. 6, 2015. 1094-1622 1050-2947 10.1103/PhysRevA.92.062109 2-s2.0-84950138198 2-s2.0-84950138198.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A - Atomic, Molecular, and Optical Physics 1,288 1,288 |
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.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129597902946304 |