Research Information System
Eskişehir Technical University Journal of Science and Technology B- Theoretical Sciences, vol.9, no.2, pp.77-92, 2021 (Peer-Reviewed Journal)
Considering the quantum memory
channels, we study the dynamical evolutions of quantum coherence and quantum
mutual information as measures of quantum correlations under the actions of
different decoherence channels on some bipartite initial states. Under any
quantum operation or process occurring in a noisy environment, quantum
correlations exhibit behavior that does not increase due to the system
interacting with its environment. We state that for such a case the decrement
of quantum correlations can be improved by the suitable choice of the initial
states and by adjusting the parameters. Thus quantum correlations can be
partially preserved against the action of the environment. It can be shown that
optimal conditions to prohibit the partial loss in quantum coherence and
quantum mutual information for performing any quantum information task may be
generated by the memory.