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

Abstract 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 operat...

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Autores principales:	F. A. Cárdenas-López, F. Albarrán-Arriagada, G. Alvarado Barrios, J. C. Retamal, G. Romero
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/80b68e1069484a81a4d8cbfdd1c82937
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spelling	oai:doaj.org-article:80b68e1069484a81a4d8cbfdd1c829372021-12-02T12:32:45ZIncoherent-mediator for quantum state transfer in the ultrastrong coupling regime10.1038/s41598-017-04467-12045-2322https://doaj.org/article/80b68e1069484a81a4d8cbfdd1c829372017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04467-1https://doaj.org/toc/2045-2322Abstract 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.F. A. Cárdenas-LópezF. Albarrán-ArriagadaG. Alvarado BarriosJ. C. RetamalG. RomeroNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q F. A. Cárdenas-López F. Albarrán-Arriagada G. Alvarado Barrios J. C. Retamal G. Romero Incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
description	Abstract 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.
format	article
author	F. A. Cárdenas-López F. Albarrán-Arriagada G. Alvarado Barrios J. C. Retamal G. Romero
author_facet	F. A. Cárdenas-López F. Albarrán-Arriagada G. Alvarado Barrios J. C. Retamal G. Romero
author_sort	F. A. Cárdenas-López
title	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_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_sort	incoherent-mediator for quantum state transfer in the ultrastrong coupling regime
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/80b68e1069484a81a4d8cbfdd1c82937
work_keys_str_mv	AT facardenaslopez incoherentmediatorforquantumstatetransferintheultrastrongcouplingregime AT falbarranarriagada incoherentmediatorforquantumstatetransferintheultrastrongcouplingregime AT galvaradobarrios incoherentmediatorforquantumstatetransferintheultrastrongcouplingregime AT jcretamal incoherentmediatorforquantumstatetransferintheultrastrongcouplingregime AT gromero incoherentmediatorforquantumstatetransferintheultrastrongcouplingregime
_version_	1718393988801626112

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

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