Robust oscillator-mediated phase gates driven by low-intensity pulses

Robust qubit-qubit interactions mediated by bosonic modes are central to many quantum technologies. Existing proposals combining fast oscillator-mediated gates with dynamical decoupling require strong pulses or fast control over the qubit-boson coupling. Here, we present a method based on dynamical...

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Detalles Bibliográficos
Autores: Arrazola Maiztegui, Iñigo, Casanova Marcos, Jorge
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61840
Acceso en línea:http://hdl.handle.net/10810/61840
Access Level:acceso abierto
Palabra clave:quantum simulation
qubits
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spelling Robust oscillator-mediated phase gates driven by low-intensity pulsesArrazola Maiztegui, IñigoCasanova Marcos, Jorgequantum simulationqubitsRobust qubit-qubit interactions mediated by bosonic modes are central to many quantum technologies. Existing proposals combining fast oscillator-mediated gates with dynamical decoupling require strong pulses or fast control over the qubit-boson coupling. Here, we present a method based on dynamical decoupling techniques that leads to faster-than-dispersive entanglement gates with low-intensity pulses. Our method is general, i.e., it is applicable to any quantum platform that has qubits interacting with bosonic mediators via longitudinal coupling. Moreover, the protocol provides robustness to fluctuations in qubit frequencies and control fields, while also being resistant to common errors such as frequency shifts and heating in the mediator as well as crosstalk effects. We illustrate our method with an implementation for trapped ions coupled via magnetic field gradients. With detailed numerical simulations, we show that entanglement gates with infidelities of 10−3 or 10−4 are possible with current or near-future experimental setups, respectively.I.A. acknowledges support from the European Union’s Horizon2020 research and innovation programme under Grant Agreement No. 899354 (SuperQuLAN). J. C. acknowledges the Ramón y Cajal (RYC2018-025197-I) research fellowship, the financial support from Spanish Government via EUR2020-112117 and Nanoscale NMR and complex systems (PID2021-126694NB-C21) projects, the EU FET Open Grant Quromorphic (828826), the ELKARTEK project Dispositivos en Tecnologías Cuánticas (KK-2022/00062), and the Basque Government grant IT1470-22.NatureEuropean Commission202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/61840reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/899354info:eu-repo/grantAgreement/MICIU/RYC2018-025197-I/info:eu-repo/grantAgreement/MICINN/PID2021-126694NB-C21/info:eu-repo/grantAgreement/EC/H2020/828826https://www.nature.com/articles/s42005-023-01243-8info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/© The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/.Atribución 3.0 Españaoai:addi.ehu.eus:10810/618402026-06-18T09:23:17Z
dc.title.none.fl_str_mv Robust oscillator-mediated phase gates driven by low-intensity pulses
title Robust oscillator-mediated phase gates driven by low-intensity pulses
spellingShingle Robust oscillator-mediated phase gates driven by low-intensity pulses
Arrazola Maiztegui, Iñigo
quantum simulation
qubits
title_short Robust oscillator-mediated phase gates driven by low-intensity pulses
title_full Robust oscillator-mediated phase gates driven by low-intensity pulses
title_fullStr Robust oscillator-mediated phase gates driven by low-intensity pulses
title_full_unstemmed Robust oscillator-mediated phase gates driven by low-intensity pulses
title_sort Robust oscillator-mediated phase gates driven by low-intensity pulses
dc.creator.none.fl_str_mv Arrazola Maiztegui, Iñigo
Casanova Marcos, Jorge
author Arrazola Maiztegui, Iñigo
author_facet Arrazola Maiztegui, Iñigo
Casanova Marcos, Jorge
author_role author
author2 Casanova Marcos, Jorge
author2_role author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv quantum simulation
qubits
topic quantum simulation
qubits
description Robust qubit-qubit interactions mediated by bosonic modes are central to many quantum technologies. Existing proposals combining fast oscillator-mediated gates with dynamical decoupling require strong pulses or fast control over the qubit-boson coupling. Here, we present a method based on dynamical decoupling techniques that leads to faster-than-dispersive entanglement gates with low-intensity pulses. Our method is general, i.e., it is applicable to any quantum platform that has qubits interacting with bosonic mediators via longitudinal coupling. Moreover, the protocol provides robustness to fluctuations in qubit frequencies and control fields, while also being resistant to common errors such as frequency shifts and heating in the mediator as well as crosstalk effects. We illustrate our method with an implementation for trapped ions coupled via magnetic field gradients. With detailed numerical simulations, we show that entanglement gates with infidelities of 10−3 or 10−4 are possible with current or near-future experimental setups, respectively.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/61840
url http://hdl.handle.net/10810/61840
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/899354
info:eu-repo/grantAgreement/MICIU/RYC2018-025197-I/
info:eu-repo/grantAgreement/MICINN/PID2021-126694NB-C21/
info:eu-repo/grantAgreement/EC/H2020/828826
https://www.nature.com/articles/s42005-023-01243-8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature
publisher.none.fl_str_mv Nature
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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