Quantum synchronization and entanglement generation

TL;DR

This paper explores quantum synchronization and entanglement in a minimal two-node spin-1 oscillator network, revealing phase locking capabilities and their relation to entanglement, advancing understanding of quantum network dynamics.

Contribution

It introduces a spin-1 based quantum network model demonstrating phase locking and clarifies the link between synchronization and entanglement generation.

Findings

Phase locking achieved in spin-1 quantum oscillators.

Synchronization occurs even without external signals.

Entanglement correlates with synchronized states.

Abstract

We study synchronization in a two-node network built out of the smallest possible self-sustained oscillator: a spin 1. We first demonstrate that phase locking between the quantum oscillators can be achieved, even for limit cycles that cannot be synchronized to an external semi-classical signal. Building upon the analytical description of the system, we then clarify the relation between quantum synchronization and the generation of entanglement. These findings establish the spin-based architecture as a promising platform for understanding synchronization in complex quantum networks.