Now showing items 1-10 of 10

  • Elusive structure of helium trimers 

    Stipanovic, P.; Vranješ Markic, Leandra; Boronat Medico, Jordi (2016-08-23)
    Article
    Open Access
    Over the years many He–He interaction potentials have been developed, some very sophisticated, including various corrections beyond the Born–Oppenheimer approximation. Most of them were used to predict properties of helium ...
  • Ground-state properties of weakly bound helium-alkali trimers 

    Stipanovic, P.; Vranješ Markic, Leandra; Zaric, D.; Boronat Medico, Jordi (2017-01-07)
    Article
    Open Access
    Weakly bound triatomic molecules consisting of two helium atoms and one alkali metal atom are studied by means of the diffusion Monte Carlo method. We determined the stability of 4He2A, 4He3HeA, and 3He2A, where A is one ...
  • One dimensional H-1, H-2 and H-3 

    Vidal, A.J.; Astrakharchik, Grigori; Vranješ Markic, Leandra; Boronat, J. (2016-05-26)
    Article
    Open Access
    The ground-state properties of one-dimensional electron-spin-polarized hydrogen H-1, deuterium H-2, and tritium 3 Hare obtained by means of quantum Monte Carlo methods. The equations of state of the three isotopes are ...
  • Quantum halo states in helium tetramers 

    Stipanovic, P.; Vranješ Markic, Leandra; Boronat Medico, Jordi (2017-01-12)
    Article
    Open Access
    The universality of quantum halo states enables a comparison of systems from different fields of physics, as demonstrated in two- and three-body clusters. In the present work, we studied weakly bound helium tetramers in ...
  • Spin-polarized hydrogen adsorbed on the surface of superfluid He-4 

    Marín, J. M.; Vranješ Markic, Leandra; Boronat Medico, Jordi (2013-12-14)
    Article
    Open Access
    The experimental realization of a thin layer of spin-polarized hydrogen H double down arrow adsorbed on top of the surface of superfluid He-4 provides one of the best examples of a stable, nearly two-dimensional(2D) quantum ...
  • Structure of halo and quasi-halo helium–helium–alkali trimers 

    Stipanovic, P.; Vranješ Markic, Leandra; Boronat Medico, Jordi (2017-05-01)
    Article
    Open Access
    We report a diffusion Monte Carlo study of A4He2 and A4He3He trimers’ structural properties, were A is one of the alkali atoms 6,7Li, 23Na, 39K, 85Rb or 133Cs. Some of them are in a pure halo state, characterized by large ...
  • Two-dimensional Spin-polarized hydrogen at zero temperature 

    Vranješ Markic, Leandra; Boronat Medico, Jordi (2013-06)
    Article
    Open Access
    The ground-state properties of spin polarized hydrogen H↓ in two dimensions (2D) are obtained by means of diffusion Monte Carlo calculations. Using the most accurate to date ab initio H↓–H↓ interatomic potential we have ...
  • Ultradilute quantum liquid drops 

    Cikojevic, V.; Dželalija, K.; Stipanovic, P.; Vranješ Markic, Leandra; Boronat Medico, Jordi (American Physical Society, 2018-04-05)
    Article
    Open Access
    Using quantum Monte Carlo methods we have studied dilute Bose-Bose mixtures with attractive interspecies interaction in the limit of zero temperature. The calculations are exact within some statistical noise and thus go ...
  • Universality in ultradilute liquid Bose-Bose mixtures 

    Cikojevic, V.; Vranješ Markic, Leandra; Astrakharchik, Grigori; Boronat Medico, Jordi (American Physical Society (APS), 2019-02-13)
    Article
    Open Access
    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 ...
  • Universality of size-energy ratio in four-body systems 

    Stipanovic, P.; Vranješ Markic, Leandra; Gudyma, Andrii; Boronat Medico, Jordi (Nature, 2019-04-18)
    Article
    Open Access
    Universal relationship of scaled size and scaled energy, which was previously established for two- and three-body systems in their ground state, is examined for four-body systems, using Quantum Monte Carlo simulations. We ...