Entanglement of superconducting qubits via acceleration radiation

Abstract We show that simulated relativistic motion can generate entanglement between artificial atoms and protect them from spontaneous emission. We consider a pair of superconducting qubits coupled to a resonator mode, where the modulation of the coupling strength can mimic the harmonic motion of...

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Autores principales:	L. García-Álvarez, S. Felicetti, E. Rico, E. Solano, C. Sabín
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2b737ef84781411c9667ea724e2392c9
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spelling	oai:doaj.org-article:2b737ef84781411c9667ea724e2392c92021-12-02T11:40:21ZEntanglement of superconducting qubits via acceleration radiation10.1038/s41598-017-00770-z2045-2322https://doaj.org/article/2b737ef84781411c9667ea724e2392c92017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00770-zhttps://doaj.org/toc/2045-2322Abstract We show that simulated relativistic motion can generate entanglement between artificial atoms and protect them from spontaneous emission. We consider a pair of superconducting qubits coupled to a resonator mode, where the modulation of the coupling strength can mimic the harmonic motion of the qubits at relativistic speeds, generating acceleration radiation. We find the optimal feasible conditions for generating a stationary entangled state between the qubits when they are initially prepared in their ground state. Furthermore, we analyse the effects of motion on the probability of spontaneous emission in the standard scenarios of single-atom and two-atom superradiance, where one or two excitations are initially present. Finally, we show that relativistic motion induces sub-radiance and can generate a Zeno-like effect, preserving the excitations from radiative decay.L. García-ÁlvarezS. FelicettiE. RicoE. SolanoC. SabínNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q L. García-Álvarez S. Felicetti E. Rico E. Solano C. Sabín Entanglement of superconducting qubits via acceleration radiation
description	Abstract We show that simulated relativistic motion can generate entanglement between artificial atoms and protect them from spontaneous emission. We consider a pair of superconducting qubits coupled to a resonator mode, where the modulation of the coupling strength can mimic the harmonic motion of the qubits at relativistic speeds, generating acceleration radiation. We find the optimal feasible conditions for generating a stationary entangled state between the qubits when they are initially prepared in their ground state. Furthermore, we analyse the effects of motion on the probability of spontaneous emission in the standard scenarios of single-atom and two-atom superradiance, where one or two excitations are initially present. Finally, we show that relativistic motion induces sub-radiance and can generate a Zeno-like effect, preserving the excitations from radiative decay.
format	article
author	L. García-Álvarez S. Felicetti E. Rico E. Solano C. Sabín
author_facet	L. García-Álvarez S. Felicetti E. Rico E. Solano C. Sabín
author_sort	L. García-Álvarez
title	Entanglement of superconducting qubits via acceleration radiation
title_short	Entanglement of superconducting qubits via acceleration radiation
title_full	Entanglement of superconducting qubits via acceleration radiation
title_fullStr	Entanglement of superconducting qubits via acceleration radiation
title_full_unstemmed	Entanglement of superconducting qubits via acceleration radiation
title_sort	entanglement of superconducting qubits via acceleration radiation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2b737ef84781411c9667ea724e2392c9
work_keys_str_mv	AT lgarciaalvarez entanglementofsuperconductingqubitsviaaccelerationradiation AT sfelicetti entanglementofsuperconductingqubitsviaaccelerationradiation AT erico entanglementofsuperconductingqubitsviaaccelerationradiation AT esolano entanglementofsuperconductingqubitsviaaccelerationradiation AT csabin entanglementofsuperconductingqubitsviaaccelerationradiation
_version_	1718395631609839616

Entanglement of superconducting qubits via acceleration radiation

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