Quantum halo states in two-dimensional dipolar clusters

Abstract A halo is an intrinsically quantum object defined as a bound state of a spatial size which extends deeply into the classically forbidden region. Previously, halos have been observed in bound states of two and less frequently of three atoms. Here, we propose a realization of halo states cont...

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Autores principales:	G. Guijarro, G. E. Astrakharchik, J. Boronat
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5399e19af51146878db7f03fa94581d3
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spelling	oai:doaj.org-article:5399e19af51146878db7f03fa94581d32021-12-02T18:51:35ZQuantum halo states in two-dimensional dipolar clusters10.1038/s41598-021-98838-42045-2322https://doaj.org/article/5399e19af51146878db7f03fa94581d32021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98838-4https://doaj.org/toc/2045-2322Abstract A halo is an intrinsically quantum object defined as a bound state of a spatial size which extends deeply into the classically forbidden region. Previously, halos have been observed in bound states of two and less frequently of three atoms. Here, we propose a realization of halo states containing as many as six atoms. We report the binding energies, pair correlation functions, spatial distributions, and sizes of few-body clusters composed by bosonic dipolar atoms in a bilayer geometry. We find two very distinct halo structures, for large interlayer separation the halo structure is roughly symmetric and we discover an unusual highly anisotropic shape of halo states close to the unbinding threshold. Our results open avenues of using ultracold gases for the experimental realization of halos composed by atoms with dipolar interactions and containing as many as six atoms.G. GuijarroG. E. AstrakharchikJ. BoronatNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q G. Guijarro G. E. Astrakharchik J. Boronat Quantum halo states in two-dimensional dipolar clusters
description	Abstract A halo is an intrinsically quantum object defined as a bound state of a spatial size which extends deeply into the classically forbidden region. Previously, halos have been observed in bound states of two and less frequently of three atoms. Here, we propose a realization of halo states containing as many as six atoms. We report the binding energies, pair correlation functions, spatial distributions, and sizes of few-body clusters composed by bosonic dipolar atoms in a bilayer geometry. We find two very distinct halo structures, for large interlayer separation the halo structure is roughly symmetric and we discover an unusual highly anisotropic shape of halo states close to the unbinding threshold. Our results open avenues of using ultracold gases for the experimental realization of halos composed by atoms with dipolar interactions and containing as many as six atoms.
format	article
author	G. Guijarro G. E. Astrakharchik J. Boronat
author_facet	G. Guijarro G. E. Astrakharchik J. Boronat
author_sort	G. Guijarro
title	Quantum halo states in two-dimensional dipolar clusters
title_short	Quantum halo states in two-dimensional dipolar clusters
title_full	Quantum halo states in two-dimensional dipolar clusters
title_fullStr	Quantum halo states in two-dimensional dipolar clusters
title_full_unstemmed	Quantum halo states in two-dimensional dipolar clusters
title_sort	quantum halo states in two-dimensional dipolar clusters
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5399e19af51146878db7f03fa94581d3
work_keys_str_mv	AT gguijarro quantumhalostatesintwodimensionaldipolarclusters AT geastrakharchik quantumhalostatesintwodimensionaldipolarclusters AT jboronat quantumhalostatesintwodimensionaldipolarclusters
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Quantum halo states in two-dimensional dipolar clusters

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