Exploració per autor "Giorgini, Stefano"

Ara es mostren els items 1-7 de 7

    • Liquid state of one-dimensional Bose mixtures: a quantum Monte Carlo study 

      Parisi, L.; Astrakharchik, Grigori; Giorgini, Stefano (American Institute of Physics (AIP), 2019-03-14)
      Article
      Accés obert
      By 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 ...

    • Phase separation in binary Bose mixtures at finite temperature 

      Spada, Gabriele; Parisi, L.; Pascual López, Gerard; Parker, Nicholas G.; Billam, Thomas P.; Pilati, Sebastiano; Boronat Medico, Jordi; Giorgini, Stefano (2023-10-18)
      Article
      Accés obert
      We investigate the magnetic behavior of finite-temperature repulsive two-component Bose mixtures by means of exact path-integral Monte-Carlo simulations. Novel algorithms are implemented for the free energy and the chemical ...

    • Single-particle versus pair superfluidity in a bilayer system of dipolar bosons 

      Macia Rey, Adrián; Astrakharchik, Grigori; Mazzanti Castrillejo, Fernando Pablo; Giorgini, Stefano; Boronat Medico, Jordi (2014-10-21)
      Article
      Accés obert
      We consider the ground state of a bilayer system of dipolar bosons, where dipoles are oriented by an external field in the direction perpendicular to the parallel planes. Quantum Monte Carlo methods are used to calculate ...

    • Spin dynamics and Andreev-Bashkin effect in mixtures of one-dimensional Bose gases 

      Parisi, L.; Astrakharchik, Grigori; Giorgini, Stefano (American Institute of Physics (AIP), 2018-07-11)
      Article
      Accés obert
      We investigate the propagation of spin waves in two-component mixtures of one-dimensional Bose gases interacting through repulsive contact potentials. By using quantum Monte Carlo methods we calculate static ground-state ...

    • Strong coupling Bose polarons in a two-dimensional gas 

      Peña Ardila, Luis Aldemar; Astrakharchik, Grigori; Giorgini, Stefano (American Physical Society, 2020-06-26)
      Article
      Accés obert
      We study the properties of Bose polarons in two dimensions using quantum Monte Carlo techniques. Results for the binding energy, the effective mass, and the quasiparticle residue are reported for a typical strength of ...

    • Two-dimensional mixture of dipolar fermions: Equation of state and magnetic phases 

      Comparin, Tommaso; Bombín Escudero, Raul; Holzmann, Markus; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi; Giorgini, Stefano (American Physical Society (APS), 2019-04-08)
      Article
      Accés obert
      We study a two-component mixture of fermionic dipoles in two dimensions at zero temperature, interacting via a purely repulsive 1/r3 potential. This model can be realized with ultracold atoms or molecules when their dipole ...

    • Two-dimensional repulsive Fermi polarons with short- A nd long-range interactions 

      Bombín Escudero, Raul; Comparin, Tommaso; Bertaina, Gianluca; Mazzanti Castrillejo, Fernando Pablo; Giorgini, Stefano; Boronat Medico, Jordi (American Physical Society (APS), 2019-08-09)
      Article
      Accés obert
      We study the repulsive polaron problem in a two-component two-dimensional system of fermionic atoms. We use two different interaction models: a short-range (hard-disk) potential and a dipolar potential. In our approach, ...