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dc.contributor.authorParisi, L.
dc.contributor.authorAstrakharchik, Grigori
dc.contributor.authorGiorgini, Stefano
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.identifier.citationParisi, L.; Astrakharchik, G.; Giorgini, S. Liquid state of one-dimensional Bose mixtures: a quantum Monte Carlo study. "Physical review letters", 14 Març 2019, vol. 122, núm. 10, p. 105302-1-105302-5.
dc.description.abstractBy using exact quantum Monte Carlo methods we calculate the ground-state properties of the liquid phase in one-dimensional Bose mixtures with contact interactions. We find that the liquid state can be formed if the ratio of coupling strengths between interspecies attractive and intraspecies repulsive interactions exceeds a critical value. As a function of this ratio we determine the density where the energy per particle has a minimum and the one where the compressibility diverges, thereby identifying the equilibrium density and the spinodal point in the phase diagram of the homogeneous liquid. Furthermore, in the stable liquid state, we calculate the chemical potential, the speed of sound, as well as structural and coherence properties, such as the pair correlation function, the static structure factor, and the one-body density matrix, thus providing a detailed description of the bulk region in self-bound droplets.
dc.publisherAmerican Institute of Physics (AIP)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshMonte Carlo method
dc.subject.otherUltracold gases Quantum Monte Carlo methods One-dimensional Bose mixtures
dc.titleLiquid state of one-dimensional Bose mixtures: a quantum Monte Carlo study
dc.subject.lemacMontecarlo, Mètode de
dc.contributor.groupUniversitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorParisi, L.; Astrakharchik, G.; Giorgini, Stefano
local.citation.publicationNamePhysical review letters

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