title: Extended diffusion in a double well potential: transition from classical to quantum regime.
abstract: The transition between the classical and quantum regimes in the diffusion of a particle in a 2-4 double-well potential is treated via the strong collision model in the high-temperature limit. Both the classical and semiclassical position correlation functions, their spectra, and correlation times are evaluated using the memory function formalism. It is shown that even in the high temperature limit, marked classical-quantum transition effects appear in the observables when collisions are rare.
authors.affiliation: Laboratoire de Mathématiques et Physique, EA4217, Université de Perpignan Via Domitia, 52 avenue Paul Alduy, F-66860, France. blaise@univ-perp.fr
authors.forename: Paul
authors.initials: P
authors.lastname: Blaise
authors.forename: Yuri P
authors.initials: YP
authors.lastname: Kalmykov
authors.forename: Adina A
authors.initials: AA
authors.lastname: Velcescu