Generating multi-hops entangled network via spin Dipolar interaction

TL;DR

This paper investigates the generation of multi-hop entangled networks using spin dipolar interactions, analyzing quantum correlations and phenomena like sudden death and birth across different network configurations.

Contribution

It introduces a method to generate multi-hop entangled networks via spin dipolar interactions and analyzes their quantum correlation dynamics.

Findings

Quantum correlations depend on initial network settings.

Multi-node correlations are more robust than two-node correlations.

Interaction direction and strength significantly affect two-node entanglement.

Abstract

The possibility of generating a multi-hops network between different entangled nodes (qubits) via spin Dipolar interaction is examined. The negativity, tangle and the non-local coherent advantage are used as quantifiers of the generated quantum correlations. The phenomena of the sudden death/birth is displayed for the entangled two nodes, while the sudden changes phenomena (increasing/ decreasing) is depicted for all entangled three nodes. The amount of correlations between the different nodes depend on the initial network settings, where the largest amount is predicted if the network is initially conducted via maximum entangled nodes. The generated quantum correlations between each three nodes are more robust than those generated between two nodes. For the generated entangled two nodes, the direction of the interaction and its strength have a remarkable effect on the correlation behavior, while they has a slightly effect on the correlation of the three nodes.