Classical and quantum filaments in the ground state of trapped dipolar Bose gases

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dc.contributor.authorCinti, Fabioen_ZA
dc.contributor.authorBoninsegni, Massimoen_ZA
dc.date.accessioned2019-02-20T12:59:14Z
dc.date.available2019-02-20T12:59:14Z
dc.date.issued2017
dc.descriptionCITATION: Cinti, F. & Boninsegni, M. 2017. Classical and quantum filaments in the ground state of trapped dipolar Bose gases. Physical Review A, 96(1):013627, doi:10.1103/PhysRevA.96.013627.en_ZA
dc.descriptionThe original publication is available at http://journals.aps.org/praen_ZA
dc.description.abstractWe study, by quantum Monte Carlo simulations, the ground state of a harmonically confined dipolar Bose gas with aligned dipole moments and with the inclusion of a repulsive two-body potential of varying range. Two different limits can clearly be identified, namely, a classical one in which the attractive part of the dipolar interaction dominates and the system forms an ordered array of parallel filaments and a quantum-mechanical one, wherein filaments are destabilized by zero-point motion, and eventually the ground state becomes a uniform cloud. The physical character of the system smoothly evolves from classical to quantum mechanical as the range of the repulsive two-body potential increases. An intermediate regime is observed in which ordered filaments are still present, albeit forming different structures from the ones predicted classically; quantum-mechanical exchanges of indistinguishable particles across different filaments allow phase coherence to be established, underlying a global superfluid response.en_ZA
dc.description.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.96.013627
dc.description.versionPublisher's versionen_ZA
dc.format.extent7 pages : colour illustrationsen_ZA
dc.identifier.citationCinti, F. & Boninsegni, M. 2017. Classical and quantum filaments in the ground state of trapped dipolar Bose gases. Physical Review A, 96(1):013627, doi:10.1103/PhysRevA.96.013627en_ZA
dc.identifier.issn2469-9934 (online)
dc.identifier.issn2469-9926 (print)
dc.identifier.otherdoi:10.1103/PhysRevA.96.013627
dc.identifier.urihttp://hdl.handle.net/10019.1/105447
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Societyen_ZA
dc.rights.holderAmerican Physical Societyen_ZA
dc.subjectDipolar gasesen_ZA
dc.subjectQuantum filamentsen_ZA
dc.subjectClassical filamentsen_ZA
dc.subjectQuantum Monte Carlo (QMC)en_ZA
dc.subjectBose–Einstein condensate (BEC)en_ZA
dc.titleClassical and quantum filaments in the ground state of trapped dipolar Bose gasesen_ZA
dc.typeArticleen_ZA
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