title: Decoherence-induced continuous pointer states.
abstract: We investigate the reduced dynamics in the Markovian approximation of an infinite quantum spin system linearly coupled to a phonon field at positive temperature. The achieved diagonalization leads to a selection of the continuous family of pointer states corresponding to a configuration space of the one-dimensional Ising model. Such a family provides a mathematical description of an apparatus with continuous readings.
authors.affiliation: Physics Faculty and BiBoS, University of Bielefeld, 33615 Bielefeld, Germany.
authors.forename: Ph
authors.initials: P
authors.lastname: Blanchard
authors.forename: R
authors.initials: R
authors.lastname: Olkiewicz