2 research outputs found
Approximating Invertible Maps by Recovery Channels: Optimality and an Application to Non-Markovian Dynamics
We investigate the problem of reversing quantum dynamics, specifically via
optimal Petz recovery maps. We focus on typical decoherence channels, such as
dephasing, depolarizing and amplitude damping. We illustrate how well a
physically implementable recovery map simulates an inverse evolution. We extend
this idea to explore the use of recovery maps as an approximation of inverse
maps, and apply it in the context of non-Markovian dynamics. We show how this
strategy attenuates non-Markovian effects, such as the backflow of information.Comment: 7 pages, 8 figure