Intermittent decoherence blockade in a chiral ring environment

Abstract It has long been recognized that emission of radiation from atoms is not an intrinsic property of individual atoms themselves, but it is largely affected by the characteristics of the photonic environment and by the collective interaction among the atoms. A general belief is that preventing...

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Autores principales:	Salvatore Lorenzo, Stefano Longhi, Albert Cabot, Roberta Zambrini, Gian Luca Giorgi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0484f903c8cd42b38da02d71daa33a91
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spelling	oai:doaj.org-article:0484f903c8cd42b38da02d71daa33a912021-12-02T17:41:30ZIntermittent decoherence blockade in a chiral ring environment10.1038/s41598-021-92288-82045-2322https://doaj.org/article/0484f903c8cd42b38da02d71daa33a912021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92288-8https://doaj.org/toc/2045-2322Abstract It has long been recognized that emission of radiation from atoms is not an intrinsic property of individual atoms themselves, but it is largely affected by the characteristics of the photonic environment and by the collective interaction among the atoms. A general belief is that preventing full decay and/or decoherence requires the existence of dark states, i.e., dressed light-atom states that do not decay despite the dissipative environment. Here, we show that, contrary to such a common wisdom, decoherence suppression can be intermittently achieved on a limited time scale, without the need for any dark state, when the atom is coupled to a chiral ring environment, leading to a highly non-exponential staircase decay. This effect, that we refer to as intermittent decoherence blockade, arises from periodic destructive interference between light emitted in the present and light emitted in the past, i.e., from delayed coherent quantum feedback.Salvatore LorenzoStefano LonghiAlbert CabotRoberta ZambriniGian Luca GiorgiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Salvatore Lorenzo Stefano Longhi Albert Cabot Roberta Zambrini Gian Luca Giorgi Intermittent decoherence blockade in a chiral ring environment
description	Abstract It has long been recognized that emission of radiation from atoms is not an intrinsic property of individual atoms themselves, but it is largely affected by the characteristics of the photonic environment and by the collective interaction among the atoms. A general belief is that preventing full decay and/or decoherence requires the existence of dark states, i.e., dressed light-atom states that do not decay despite the dissipative environment. Here, we show that, contrary to such a common wisdom, decoherence suppression can be intermittently achieved on a limited time scale, without the need for any dark state, when the atom is coupled to a chiral ring environment, leading to a highly non-exponential staircase decay. This effect, that we refer to as intermittent decoherence blockade, arises from periodic destructive interference between light emitted in the present and light emitted in the past, i.e., from delayed coherent quantum feedback.
format	article
author	Salvatore Lorenzo Stefano Longhi Albert Cabot Roberta Zambrini Gian Luca Giorgi
author_facet	Salvatore Lorenzo Stefano Longhi Albert Cabot Roberta Zambrini Gian Luca Giorgi
author_sort	Salvatore Lorenzo
title	Intermittent decoherence blockade in a chiral ring environment
title_short	Intermittent decoherence blockade in a chiral ring environment
title_full	Intermittent decoherence blockade in a chiral ring environment
title_fullStr	Intermittent decoherence blockade in a chiral ring environment
title_full_unstemmed	Intermittent decoherence blockade in a chiral ring environment
title_sort	intermittent decoherence blockade in a chiral ring environment
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0484f903c8cd42b38da02d71daa33a91
work_keys_str_mv	AT salvatorelorenzo intermittentdecoherenceblockadeinachiralringenvironment AT stefanolonghi intermittentdecoherenceblockadeinachiralringenvironment AT albertcabot intermittentdecoherenceblockadeinachiralringenvironment AT robertazambrini intermittentdecoherenceblockadeinachiralringenvironment AT gianlucagiorgi intermittentdecoherenceblockadeinachiralringenvironment
_version_	1718379625812328448

Intermittent decoherence blockade in a chiral ring environment

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