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dc.contributor.author
Calzetta, Esteban Adolfo
dc.contributor.author
Hu, B.L.
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Rey, Ana Maria
dc.date.available
2019-03-18T15:18:43Z
dc.date.issued
2006-12
dc.identifier.citation
Calzetta, Esteban Adolfo; Hu, B.L.; Rey, Ana Maria; Bose-Einstein-condensate superfluid-Mott-insulator transition in an optical lattice; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 73; 2; 12-2006; 1-18
dc.identifier.issn
1050-2947
dc.identifier.uri
http://hdl.handle.net/11336/71840
dc.description.abstract
We present an analytical model for a cold bosonic gas on an optical lattice (with densities of the order of 1 particle per site), targeting the critical regime of the Bose-Einstein-condensate superfluid-Mott-insulator transition. We focus on the computation of the one-body density matrix and its Fourier transform, the momentum distribution which is directly obtainable from "time-of-flight" measurements. The expected number of particles with zero momentum may be identified with the condensate population if it is close to the total number of particles. Our main result is an analytic expression for this observable, interpolating between the known results valid for the two regimes separately: the standard Bogoliubov approximation valid in the superfluid regime and the strong-coupling perturbation theory valid in the Mott regime. © 2006 The American Physical Society.
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application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Bose Einstein Condensates
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Bose-Einstein-condensate superfluid-Mott-insulator transition in an optical lattice
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-15T18:50:14Z
dc.journal.volume
73
dc.journal.number
2
dc.journal.pagination
1-18
dc.journal.pais
Estados Unidos
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Ridge
dc.description.fil
Fil: Calzetta, Esteban Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Hu, B.L.. University of Maryland; Estados Unidos
dc.description.fil
Fil: Rey, Ana Maria. University of Maryland; Estados Unidos. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
dc.journal.title
Physical Review A: Atomic, Molecular and Optical Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.73.023610
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