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http://hdl.handle.net/2445/9554
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DC Field | Value | Language |
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dc.contributor.author | Fabrocini, A. | cat |
dc.contributor.author | Polls Martí, Artur | cat |
dc.date.accessioned | 2009-10-06T09:27:58Z | - |
dc.date.available | 2009-10-06T09:27:58Z | - |
dc.date.issued | 1999 | cat |
dc.identifier.issn | 1050-2947 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/9554 | - |
dc.description.abstract | We study the ground state of a system of Bose hard-spheres trapped in an isotropic harmonic potential to investigate the effect of the interatomic correlations and the accuracy of the Gross-Pitaevskii equation. We compare a local density approximation, based on the energy functional derived from the low density expansion of the energy of the uniform hard sphere gas, and a correlated wave function approach which explicitly introduces the correlations induced by the potential. Both higher order terms in the low density expansion, beyond Gross-Pitaevskii, and explicit dynamical correlations have effects of the order of percent when the number of trapped particles becomes similar to that attained in recent experiments. | - |
dc.format.extent | 5 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | cat |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.60.2319 | cat |
dc.relation.ispartof | Physical Review A, 1999, vol. 60, núm. 3, p. 2319-2323. | cat |
dc.relation.uri | http://doi.org/10.1103/PhysRevA.60.2319 | - |
dc.rights | (c) The American Physical Society, 1999 | cat |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Estadística quàntica | cat |
dc.subject.classification | Constitució de la matèria | cat |
dc.subject.classification | Ionització | cat |
dc.subject.classification | Excitació nuclear | cat |
dc.subject.other | Quantum statistics | eng |
dc.subject.other | Constitution of matter | eng |
dc.subject.other | Ionization | eng |
dc.subject.other | Nuclear excitation | eng |
dc.title | Beyond the Gross-Pitaevskii approximation: Local density versus correlated basis approach for trapped bosons | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 151273 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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151273.pdf | 71.8 kB | Adobe PDF | View/Open |
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