Dynamical origin of quantum probabilities revisited

          @misc{ scivideos_PIRSA:09090097,
            doi = {10.48660/09090097},
            url = {https://pirsa.org/09090097},
            author = {Colin, Samuel},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Dynamical origin of quantum probabilities revisited},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {sep},
            note = {PIRSA:09090097 see, \url{https://scivideos.org/pirsa/09090097}}
          }
          

Abstract

The de Broglie-Bohm theory is about non-relativistic point-particles that move deterministically along trajectories. The theory reproduces the predictions of standard quantum theory given that the distribution of particle positions over an ensemble of systems, all described by the same wavefunction psi, equals the quantum equilibrium distribution |psi| squared. Numerical simulations by Valentini and Westman have illustrated that non-equilibrium particle distributions may relax to quantum equilibrium after some time. Here we consider non-equilibrium distributions and their relaxation properties for a particular class of trajectory theories, first studied in detail by Deotto and Ghirardi, that are empirically equivalent to the de Broglie-Bohm theory in quantum equilibrium. Joint work with Ward Struyve (KUL, Belgium).