Now showing items 1-4 of 4

    • Ab-initio quantum Monte Carlo study of ultracold atomic mixtures 

      Cikojevic, Viktor (Universitat Politècnica de Catalunya, 2021-04-20)
      Doctoral thesis
      Open Access
      The properties of mixtures of Bose-Einstein condensates at T=0 have been investigated using quantum Monte Carlo (QMC) methods and Density Functional Theory (DFT) with the aim of understanding physics beyond the mean-field ...
    • Finite-range effects in the two-dimensional repulsive Fermi polaron 

      Bombín Escudero, Raul; Cikojevic, Viktor; Sánchez Baena, Juan; Boronat Medico, Jordi (American Physical Society, 2021-04-01)
      Article
      Open Access
      We study the repulsive Fermi polaron in a two-component, two-dimensional system of fermionic atoms inspired by the results of a recent experiment with 173Yb atoms [N. Darkwah Oppong et al., Phys. Rev. Lett. 122, 193604 ...
    • Finite-range effects in ultradilute quantum drops 

      Cikojevic, Viktor; Vranješ Markic, Leandra; Boronat Medico, Jordi (2020-05-27)
      Article
      Open Access
      In the first experimental realization of dilute Bose–Bose liquid drops using two hyperfine states of 39K some discrepancies between theory and experiment were observed. The standard analysis of the data using the Lee–Huang–Yang ...
    • Towards a quantum Monte Carlo-based density functional including finite-range effects: excitation modes of a K 39 quantum droplet 

      Cikojevic, Viktor; Vranješ Markic, Leandra; Pi Pericay, Martí; Barranco Gómez, Manuel; Boronat Medico, Jordi (American Physical Society, 2020-09-25)
      Article
      Open Access
      Some discrepancies between experimental results on quantum droplets made of a mixture of 39K atoms in different hyperfine states and their analysis within extended Gross-Pitaevskii theory (which incorporates beyond mean-field ...