title: Different types of integrability and their relation to decoherence in central spin models.
abstract: We investigate the relation between integrability and decoherence in central spin models with more than one central spin. We show that there is a transition between integrability ensured by the Bethe ansatz and integrability ensured by complete sets of commuting operators. This has a significant impact on the decoherence properties of the system, suggesting that it is not necessarily integrability or nonintegrability which is related to decoherence, but rather its type or a change from integrability to nonintegrability.
authors.affiliation: Institut für Theoretische Physik, Universität Regensburg, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Erbe
authors.forename: J
authors.initials: J
authors.lastname: Schliemann