title: Operational representation of quantum states based on interference.
abstract: We describe a real-valued and periodic representation of quantum states. This representation can be defined operationally using generalized position and momentum measurements on coupled systems. It turns out that the emerging quantum interference terms encode the complete state information and also allow us to formulate quantum dynamics. We discuss the close connection to the theory of analytic functions.
authors.affiliation: Abteilung Quantenphysik, Universität Ulm, D-89069 Ulm, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Wolf
authors.forename: Matthias
authors.initials: M
authors.lastname: Freyberger