Different types of integrability and their relation to decoherence in central spin models |
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Authors: | Erbe B Schliemann J |
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Institution: | Institut für Theoretische Physik, Universit?t Regensburg, Germany. |
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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. |
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