Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime

We study quantum state transfer between two qubits coupled to a common quantum bus that is constituted by an ultrastrong coupled light-matter system. By tuning both qubit frequencies on resonance with a forbidden transition in the mediating system, we demonstrate a high-fidelity swap operation even...

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Detalles Bibliográficos
Autores principales: Cárdenas-López, F. A., Albarrán-Arriagada, F., Barrios, G. Alvarado, Retamal, J. C., Romero, G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5482826/
https://www.ncbi.nlm.nih.gov/pubmed/28646203
http://dx.doi.org/10.1038/s41598-017-04467-1
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author Cárdenas-López, F. A.
Albarrán-Arriagada, F.
Barrios, G. Alvarado
Retamal, J. C.
Romero, G.
author_facet Cárdenas-López, F. A.
Albarrán-Arriagada, F.
Barrios, G. Alvarado
Retamal, J. C.
Romero, G.
author_sort Cárdenas-López, F. A.
collection PubMed
description We study quantum state transfer between two qubits coupled to a common quantum bus that is constituted by an ultrastrong coupled light-matter system. By tuning both qubit frequencies on resonance with a forbidden transition in the mediating system, we demonstrate a high-fidelity swap operation even though the quantum bus is thermally populated. We discuss a possible physical implementation in a realistic circuit QED scheme that leads to the multimode Dicke model. This proposal may have applications on hot quantum information processing within the context of ultrastrong coupling regime of light-matter interaction.
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spelling pubmed-54828262017-06-26 Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime Cárdenas-López, F. A. Albarrán-Arriagada, F. Barrios, G. Alvarado Retamal, J. C. Romero, G. Sci Rep Article We study quantum state transfer between two qubits coupled to a common quantum bus that is constituted by an ultrastrong coupled light-matter system. By tuning both qubit frequencies on resonance with a forbidden transition in the mediating system, we demonstrate a high-fidelity swap operation even though the quantum bus is thermally populated. We discuss a possible physical implementation in a realistic circuit QED scheme that leads to the multimode Dicke model. This proposal may have applications on hot quantum information processing within the context of ultrastrong coupling regime of light-matter interaction. Nature Publishing Group UK 2017-06-23 /pmc/articles/PMC5482826/ /pubmed/28646203 http://dx.doi.org/10.1038/s41598-017-04467-1 Text en © The Author(s) 2017 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/.
spellingShingle Article
Cárdenas-López, F. A.
Albarrán-Arriagada, F.
Barrios, G. Alvarado
Retamal, J. C.
Romero, G.
Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title_full Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title_fullStr Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title_full_unstemmed Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title_short Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
title_sort incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5482826/
https://www.ncbi.nlm.nih.gov/pubmed/28646203
http://dx.doi.org/10.1038/s41598-017-04467-1
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