Switching of the information backflow between a helical spin system and non-Markovian bath

The dissipative dynamics of the spin chain coupled to non-Markovian magnonic reservoir was studied. chirality is formed due magnetoelectric coupling. We explored sign trace distance derivative and found alternating positive/negative periods in system's time evolution. negative associated with flow information from system bath decrease states distinguishability, while positive related opposite direction increase distinguishability. distinct effect applied electric magnetic fields. While Dzyaloshinskii-Moriya interaction external field lead reshuffling periods, leads swift positive-negative transitions. Thus, helical quantum rings baths, it possible control directions through