Exploració per tema "Funcions d'ona"

Ara es mostren els items 1-6 de 6

    • Efficient update of determinants for many-electron wave function overlaps 

      Alonso Jordá, Pedro; Davidovic, Davor; Sapunar, Marin; Herrero Zaragoza, José Ramón; Quintana Ortí, Enrique Salvador (2021-01)
      Article
      Accés obert
      The calculation of overlaps between many-electron wave functions at different nuclear geometries during nonadiabatic dynamics simulations requires the evaluation of a large number of determinants of matrices that differ ...

    • Eina de representació de funcions d'ona quàntiques en 3D 

      Armada Ruiz, Alvaro (Universitat Politècnica de Catalunya, 2022-10-18)
      Treball Final de Grau
      Accés obert
      La física quàntica és un tema molt complex, que és la base per a la comprensió dels fenòmens naturals. Aquesta explica elements com l'àtom, l'enllaç químic... Ara bé, encara que descriu el món en una escala atòmica podem ...

    • Monte Carlo simulation of recent experiments with ultracold dipolar atoms in one dimension 

      Mikautadze, Giorgi (Universitat Politècnica de Catalunya, 2022-01-27)
      Treball Final de Grau
      Accés obert

    • Pattern and velocity selection of fronts propagating in modulated media 

      Armero, J.; Lacasta Palacio, Ana María; Ramírez de la Piscina Millán, Laureano; Casademunt, Jaume; Sancho, Jose Maria; Sagués Mestre, Francesc (EDP Sciences, 1996-02-01)
      Article
      Accés obert
      We study the problem of pattern and velocity selection of morphologically stable two-dimensional fronts propagating in a spatially modulated medium. The generic system is governed by a local equation and evolves towards a ...

    • Quantum particles in fractal external potential 

      Amorós Trepat, Marc (Universitat Politècnica de Catalunya, 2021-06-28)
      Treball Final de Grau
      Accés obert
      The Schrödinger equation gives us a time evolution of the wave function of a certain quantum system, thus we obtain a mathematical description of this system. This project focuses on solving it numerically, using the exact ...

    • Quantum versus mean-field collapse in a many-body system 

      Astrakharchik, Grigori; Malomed, Boris A. (2015-10-29)
      Article
      Accés obert
      The recent analysis, based on the mean-field approximation (MFA), has predicted that the critical quantum collapse of the bosonic wave function, pulled to the center by the inverse-square potential in the three-dimensional ...