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Dipolar Bose Supersolid Stripes
dc.contributor.author | Bombín Escudero, Raul |
dc.contributor.author | Boronat Medico, Jordi |
dc.contributor.author | Mazzanti Castrillejo, Fernando Pablo |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2018-01-09T18:02:29Z |
dc.date.available | 2018-01-09T18:02:29Z |
dc.date.issued | 2017-12-20 |
dc.identifier.citation | Bombin, R., Boronat, J., Mazzanti, F. Dipolar Bose Supersolid Stripes. "Physical review letters", 20 Desembre 2017, vol. 119, núm. 25. |
dc.identifier.issn | 0031-9007 |
dc.identifier.uri | http://hdl.handle.net/2117/112550 |
dc.description.abstract | 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. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Monte Carlo method |
dc.subject.lcsh | Bose-Einstein condensation |
dc.subject.lcsh | Bosons |
dc.title | Dipolar Bose Supersolid Stripes |
dc.type | Article |
dc.subject.lemac | Montecarlo, Mètode de |
dc.subject.lemac | Condensació de Bose-Einstein |
dc.subject.lemac | Bosons |
dc.contributor.group | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.identifier.doi | 10.1103/PhysRevLett.119.250402 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.250402 |
dc.rights.access | Open Access |
local.identifier.drac | 21694918 |
dc.description.version | Postprint (published version) |
local.citation.author | Bombin, R.; Boronat, J.; Mazzanti, F. |
local.citation.publicationName | Physical review letters |
local.citation.volume | 119 |
local.citation.number | 25 |
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