Scrutinizing entropic uncertainty and quantum discord in an open system under quantum critical environment
Mohammad Reza Pourkarimi, Soroush Haseli, Saeed Haddadi, Maryam Hadipour · Laser Physics Letters · 2022
Abstract We explore the dynamics of quantum discord (QD) and entropic uncertainty lower bound for a two-qubit system independently coupled to an Ising spin chain. For this model, we obtain the analytic results of QD and uncertainty bound and find that there is a trade-off between them. We also examine the effect of the number of spins and the coupling strength to a transverse field on these two quantum criteria.