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dc.contributor | Universitat Politècnica de Catalunya. Departament de Física |
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dc.contributor | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.contributor.author | Cikojevic, V. |
dc.contributor.author | Vranješ Markic, Leandra |
dc.contributor.author | Astrakharchik, Grigori |
dc.contributor.author | Boronat Medico, Jordi |
dc.date | 2019-02-13 |
dc.identifier.citation | Cikojevic, V. [et al.]. Universality in ultradilute liquid Bose-Bose mixtures. "Physical review A", 13 Febrer 2019, vol. 99, núm. 2, p. 023618-1-023618-6. |
dc.identifier.citation | 2469-9926 |
dc.identifier.citation | 10.1103/PhysRevA.99.023618 |
dc.identifier.uri | http://hdl.handle.net/2117/129994 |
dc.description.abstract | We have studied dilute Bose-Bose mixtures of atoms with attractive interspecies and repulsive intraspecies interactions using quantum Monte Carlo methods at T=0. Using a number of models for interactions, we determine the range of validity of the universal equation of state of the symmetric liquid mixture as a function of two parameters: the s-wave scattering length and the effective range of the interaction potential. It is shown that the Lee-Huang-Yang correction is sufficient only for extremely dilute liquids with the additional restriction that the range of the potential is small enough. Based on the quantum Monte Carlo equation of state we develop a density functional which goes beyond the Lee-Huang-Yang term and use it together with the local density approximation to determine density profiles of realistic self-bound drops. |
dc.language.iso | eng |
dc.publisher | American Physical Society (APS) |
dc.relation | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.023618 |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights | info:eu-repo/semantics/openAccess |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject | Monte Carlo method |
dc.subject | Diffusion quantum Monte Carlo Liquids Superfluids |
dc.subject | Montecarlo, Mètode de |
dc.title | Universality in ultradilute liquid Bose-Bose mixtures |
dc.type | info:eu-repo/semantics/publishedVersion |
dc.type | info:eu-repo/semantics/article |