Entanglement in bipartite quantum systems can increase beyond its initial value when local reduced dynamics are given by non-positive maps arising from local interactions.
Buscemi, Complete positivity, Markovianity, and the quantum data-processing inequality, in the presence of initial system-environment correlations, Phys
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Entanglement increase from local interactions which lead to non-positive local reduced dynamics
Entanglement in bipartite quantum systems can increase beyond its initial value when local reduced dynamics are given by non-positive maps arising from local interactions.
- Kramers-Kronig Relations and Causality in Non-Markovian Open Quantum Dynamics: Kernel, State, and Effective Kernel