Dipolar Bose Supersolid Stripes

We study the superfluid properties of a system of fully polarized dipolar bosons moving in the XY plane. We focus on the general case where the polarization field forms an arbitrary angle a with respect to the Z axis, while the system is still stable. We use the diffusion Monte Carlo and the path in...

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Autores: Bombín Escudero, Raul|||0000-0002-4553-1214, Boronat Medico, Jordi|||0000-0002-0273-3457, Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/112550
Acceso en línea:https://hdl.handle.net/2117/112550
https://dx.doi.org/10.1103/PhysRevLett.119.250402
Access Level:acceso abierto
Palabra clave:Monte Carlo method
Bose-Einstein condensation
Bosons
Montecarlo, Mètode de
Condensació de Bose-Einstein
Àrees temàtiques de la UPC::Física
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spelling Dipolar Bose Supersolid StripesBombín Escudero, Raul|||0000-0002-4553-1214Boronat Medico, Jordi|||0000-0002-0273-3457Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609Monte Carlo methodBose-Einstein condensationBosonsMontecarlo, Mètode deCondensació de Bose-EinsteinBosonsÀrees temàtiques de la UPC::FísicaWe study the superfluid properties of a system of fully polarized dipolar bosons moving in the XY plane. We focus on the general case where the polarization field forms an arbitrary angle a with respect to the Z axis, while the system is still stable. We use the diffusion Monte Carlo and the path integral ground state methods to evaluate the one-body density matrix and the superfluid fractions in the region of the phase diagram where the system forms stripes. Despite its oscillatory behavior, the presence of a finite large-distance asymptotic value in the s-wave component of the one-body density matrix indicates the existence of a Bose condensate. The superfluid fraction along the stripes direction is always close to 1, while in the Y direction decreases to a small value that is nevertheless different from zero. These two facts confirm that the stripe phase of the dipolar Bose system is a clear candidate for an intrinsic supersolid without the presence of defects as described by the Andreev-Lifshitz mechanism.Peer Reviewed20172017-12-2020182018-01-09journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/112550https://dx.doi.org/10.1103/PhysRevLett.119.250402reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1125502026-05-27T15:37:01Z
dc.title.none.fl_str_mv Dipolar Bose Supersolid Stripes
title Dipolar Bose Supersolid Stripes
spellingShingle Dipolar Bose Supersolid Stripes
Bombín Escudero, Raul|||0000-0002-4553-1214
Monte Carlo method
Bose-Einstein condensation
Bosons
Montecarlo, Mètode de
Condensació de Bose-Einstein
Bosons
Àrees temàtiques de la UPC::Física
title_short Dipolar Bose Supersolid Stripes
title_full Dipolar Bose Supersolid Stripes
title_fullStr Dipolar Bose Supersolid Stripes
title_full_unstemmed Dipolar Bose Supersolid Stripes
title_sort Dipolar Bose Supersolid Stripes
dc.creator.none.fl_str_mv Bombín Escudero, Raul|||0000-0002-4553-1214
Boronat Medico, Jordi|||0000-0002-0273-3457
Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
author Bombín Escudero, Raul|||0000-0002-4553-1214
author_facet Bombín Escudero, Raul|||0000-0002-4553-1214
Boronat Medico, Jordi|||0000-0002-0273-3457
Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
author_role author
author2 Boronat Medico, Jordi|||0000-0002-0273-3457
Mazzanti Castrillejo, Fernando Pablo|||0000-0001-6641-0609
author2_role author
author
dc.subject.none.fl_str_mv Monte Carlo method
Bose-Einstein condensation
Bosons
Montecarlo, Mètode de
Condensació de Bose-Einstein
Bosons
Àrees temàtiques de la UPC::Física
topic Monte Carlo method
Bose-Einstein condensation
Bosons
Montecarlo, Mètode de
Condensació de Bose-Einstein
Bosons
Àrees temàtiques de la UPC::Física
description We study the superfluid properties of a system of fully polarized dipolar bosons moving in the XY plane. We focus on the general case where the polarization field forms an arbitrary angle a with respect to the Z axis, while the system is still stable. We use the diffusion Monte Carlo and the path integral ground state methods to evaluate the one-body density matrix and the superfluid fractions in the region of the phase diagram where the system forms stripes. Despite its oscillatory behavior, the presence of a finite large-distance asymptotic value in the s-wave component of the one-body density matrix indicates the existence of a Bose condensate. The superfluid fraction along the stripes direction is always close to 1, while in the Y direction decreases to a small value that is nevertheless different from zero. These two facts confirm that the stripe phase of the dipolar Bose system is a clear candidate for an intrinsic supersolid without the presence of defects as described by the Andreev-Lifshitz mechanism.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-12-20
2018
2018-01-09
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/112550
https://dx.doi.org/10.1103/PhysRevLett.119.250402
url https://hdl.handle.net/2117/112550
https://dx.doi.org/10.1103/PhysRevLett.119.250402
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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