• Quantum phase transition with a simple variational ansatz 

      Lutsyshyn, Yaroslav; Astrakharchik, Grigori; Cazorla, C; Boronat Medico, Jordi (2014-12-11)
      Article
      Accés obert
      We study the zero-temperature quantum phase transition between liquid and hcp solid He-4. We use the variational method with a simple yet exchange-symmetric and fully explicit wave function. It is found that the optimized ...
    • Role of frequency mismatch in neuronal communication through coherence 

      Sancristóbal Alonso, Belén de; Vicente, Raul; García Ojalvo, Jordi (2014-02-12)
      Article
      Accés restringit per política de l'editorial
      Neuronal gamma oscillations have been described in local field potentials of different brain regions of multiple species. Gamma oscillations are thought to reflect rhythmic synaptic activity organized by inhibitory ...
    • Universality in molecular halo clusters 

      Stipanovic, P.; Markic, L. Vranjes; Beslic, Ivana; Boronat Medico, Jordi (2014-12-16)
      Article
      Accés obert
      The ground state of weakly bound dimers and trimers with a radius extending well into the classically forbidden region is explored, with the goal to test the predicted universality of quantum halo states. The focus of the ...