Browsing by Author "Casulleras Ambrós, Joaquín"Més informacióMés informació

Now showing items 1-5 of 5

    • Computer simulation of liquid methanol ii:system size effects 

      Casulleras Ambrós, Joaquín; Guàrdia Manuel, Elvira (1991-01)
      Article
      Restricted access - publisher's policy
      A series of molecular dynamics simulations of liquid methanol has been carried out on a supernode transputer array. Four system sizes from 125 to 512 molecules have been considered, in order to study the effect of system ...

    • High-order time expansion path integral ground state 

      Rota, Riccardo; Casulleras Ambrós, Joaquín; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi (2010-01)
      Article
      Open Access
      The feasibility of path integral Monte Carlo ground state calculations with very few beads using a high-order short-time Green’s function expansion is discussed. An explicit expression of the evolution operator which provides ...

    • Itinerant ferromagnetism in dilute SU(N) Fermi gases 

      Pera i Ferreruela, Jordi; Casulleras Ambrós, Joaquín; Boronat Medico, Jordi (2023-03-17)
      Article
      Open Access
      We present exact analytic results for the energy of a SU(N) repulsive Fermi gas as a function of the spin-channel occupation at second order in the gas parameter. This is an extension of previous results that now incorporates ...

    • Pràctiques de Laboratori 

      Canales Gabriel, Manel; Trullàs Simó, Joaquim; Ametller Congost, Lluís; Llanta Salleras, Estanislao; Rey Oriol, Rosendo; Casulleras Ambrós, Joaquín; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi; Martí Rabassa, Jordi; Guàrdia Manuel, Elvira; Sesé Castel, Gemma; Pastor Satorras, Romualdo (Universitat Politècnica de Catalunya, 2015)
      Practice
      Open Access

    • Quantum Monte Carlo estimation of complex-time correlations for the study of the ground-state dynamic structure function 

      Rota, R; Casulleras Ambrós, Joaquín; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi (2015-03-21)
      Article
      Open Access
      We present a method based on the path integral Monte Carlo formalism for the calculation of ground-state time correlation functions in quantum systems. The key point of the method is the consideration of time as a complex ...