Quantum correlation dynamics of three qubits in non-Markovian environments

Abstract EN

We investigate the quantum correlation dynamics of three independent qubits each lo- cally interacting with a zero temperature non-Markovian reservoir by using the Geometric measure of quantum discord (GQD).

The dependence of quantum correlation dynamics on amount of non-Markovian, the degree of initial quantum correlation and purity of the initial states are studied in detail.

It is found that the quantum correlation of such three qubits system revives after instantaneous disappearance period when a proper amount of non-Markovian is present.

A comparison to the pairwise quantum discord and entangle- ment dynamics in three qubits system is also made.