title: Observing trajectories with weak measurements in quantum systems in the semiclassical regime.
abstract: We propose a scheme allowing us to observe the evolution of a quantum system in the semiclassical regime along the paths generated by the propagator. The scheme relies on performing consecutive weak measurements of the position. We show how "weak trajectories" can be extracted from the pointers of a series of devices having weakly interacted with the system. The properties of these weak trajectories are investigated and illustrated in the case of a time-dependent model system.
authors.affiliation: LPTM, CNRS Unité 8089, Université de Cergy-Pontoise, 95302 Cergy-Pontoise cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Matzkin