Decoherence-induced continuous pointer states.
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.
Blanchard
Ph
P
Physics Faculty and BiBoS, University of Bielefeld, 33615 Bielefeld, Germany.
Olkiewicz
R
R