Sharing of classical and quantum correlations via XY interaction

Abstract

The sharing of classical and quantum correlations via XY interaction is investigated. The model includes two identical networks consisting of nn nodes, the iith node of one network sharing a correlated state with the jjth node of the other network, while all other nodes are initially unconnected. It is shown that classical correlation, quantum discord as well as entanglement can be shared between any two nodes of the network via XY interaction and that quantum information can be transferred effectively between them. It is found that there is no simple dominating relation between the quantum correlation and entanglement in inertial system.