Now showing items 1-3 of 3

    • Ehrenfest dynamics is purity non-preserving: a necessary ingredient for decoherence 

      Alonso, J. L.; Clemente-Gallardo, Jesús; Cuchí Oterino, J. C.; Echenique, Pablo; Falceto, Fernando (American Institute of Physics, 2012)
      We discuss the evolution of purity in mixed quantum/classical approaches to electronic nonadiabatic dynamics in the context of the Ehrenfest model. As it is impossible to exactly determine initial conditions for a realistic ...
    • Nonextensive thermodynamic functions in the Schrödinger-Gibbs ensemble 

      Alonso, J. L.; Castro, Alberto; Clemente-Gallardo, Jesús; Cuchí Oterino, J. C.; Echenique, Pablo; Esteve, J. G.; Falceto, Fernando (American Physical Society, 2015)
      Schrödinger suggested that thermodynamical functions cannot be based on the gratuitous allegation that quantum-mechanical levels (typically the orthogonal eigenstates of the Hamiltonian operator) are the only allowed states ...
    • Statistics and Nosé formalism for Ehrenfest dynamics 

      Alonso, J. L.; Castro, Alberto; Clemente-Gallardo, Jesús; Cuchí Oterino, J. C.; Echenique, Pablo; Falceto, Fernando (IOP Publishing, 2011)
      Quantum dynamics (e.g., the Schrödinger equation) and classical dynamics (e.g., Hamilton equations) can both be formulated in equal geometric terms: a Poisson bracket defined on a manifold. The difference between both ...