Recovering Complete Positivity of Non-Markovian Quantum Dynamics with Choi-Proximity Regularization
Recovering Complete Positivity of Non-Markovian Quantum Dynamics with Choi-Proximity Regularization
A relevant problem in the theory of open quantum systems is the lack of complete positivity of dynamical maps obtained after weak-coupling approximations, a famous example being the Redfield master equation. A number of approaches exist to recover well-defined evolutions under additional Markovian assumptions, but much less is known beyond …