Erbe, Björn and Schliemann, John
Different Types of Integrability and Their Relation to Decoherence in Central Spin Models.
Phys. Rev. Lett. 105, p. 177602.
Other URL: http://link.aps.org/doi/10.1103/PhysRevLett.105.177602
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.