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One-dimensional Bose gas in optical lattices of arbitrary strength
dc.contributor.author | Astrakharchik, Grigori |
dc.contributor.author | Krutitsky, K.V. |
dc.contributor.author | Lewenstein, Maciej |
dc.contributor.author | Mazzanti Castrillejo, Fernando Pablo |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2016-03-11T17:29:02Z |
dc.date.available | 2016-03-11T17:29:02Z |
dc.date.issued | 2016-02-08 |
dc.identifier.citation | Astrakharchik, G., Krutitsky, K.V., Lewenstein, M., Mazzanti, F. One-dimensional Bose gas in optical lattices of arbitrary strength. "Physical Review A - Atomic, Molecular, and Optical Physics", 08 Febrer 2016, vol. 93, núm. 2, p. 1-5. |
dc.identifier.issn | 1094-1622 |
dc.identifier.uri | http://hdl.handle.net/2117/84244 |
dc.description.abstract | One-dimensional Bose gas with contact interaction in optical lattices at zero temperature is investigated by means of the exact diffusion Monte Carlo algorithm. The results obtained from the fundamental continuous model are compared with those obtained from the lattice (discrete) Bose-Hubbard model, using exact diagonalization, and from the quantum sine-Gordon model. We map out the complete phase diagram of the continuous model and determine the regions of applicability of the Bose-Hubbard model. Various physical quantities characterizing the systems are calculated, and it is demonstrated that the sine-Gordon model used for shallow lattices is inaccurate. |
dc.format.extent | 5 p. |
dc.language.iso | eng |
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 gas |
dc.title | One-dimensional Bose gas in optical lattices of arbitrary strength |
dc.type | Article |
dc.subject.lemac | Montecarlo, Mètode de |
dc.subject.lemac | Condensació de Bose-Einstein |
dc.contributor.group | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.identifier.doi | 10.1103/PhysRevA.93.021605 |
dc.rights.access | Open Access |
local.identifier.drac | 17568007 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/EC/H2020/641122/EU/Quantum simulations of insulators and conductors/QUIC |
local.citation.author | Astrakharchik, G.; Krutitsky, K.V.; Lewenstein, M.; Mazzanti, F. |
local.citation.publicationName | Physical Review A - Atomic, Molecular, and Optical Physics |
local.citation.volume | 93 |
local.citation.number | 2 |
local.citation.startingPage | 1 |
local.citation.endingPage | 5 |
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