Genuine multipartite system-environment correlations in decoherent dynamics

摘要

We propose relative entropy-based quantifiers for genuine multipartite total, quantum, and classical correlations.nThese correlation measures are applied to investigate the generation of genuine multiparticle correlationsnin decoherent dynamics induced by the interaction of two qubits with local-independent environments. Wenconsider amplitude- and phase-damping channels and compare their capabilities to spread information throughnthe creation of many-body correlations. We identify changes in behavior for the genuine four- and three-partitentotal correlations and show that, contrary to amplitude environments, phase-noise channels transform the bipartitencorrelation initially shared between the qubits into genuine multiparticle system-environment correlations.