Job openings & fellowships Job openings
Select Page
Seminars
December 14, 2022
SEMINAR: Approximating Invertible Maps by Recovery Channels: Optimality and an Application to Non-Markovian Dynamics

Hour: From 15:00h to 16:00h

Place: Seminar Room

SEMINAR: Approximating Invertible Maps by Recovery Channels: Optimality and an Application to Non-Markovian Dynamics

NADJA BERNARDES
Universidade Federal de Pernambuco

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. Higher dimensions are also studied. 

Hosted by Prof. Dr. Antonio Acín
Seminars
December 14, 2022
SEMINAR: Approximating Invertible Maps by Recovery Channels: Optimality and an Application to Non-Markovian Dynamics

Hour: From 15:00h to 16:00h

Place: Seminar Room

SEMINAR: Approximating Invertible Maps by Recovery Channels: Optimality and an Application to Non-Markovian Dynamics

NADJA BERNARDES
Universidade Federal de Pernambuco

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. Higher dimensions are also studied. 

Hosted by Prof. Dr. Antonio Acín