# Cluster State Generation with Spin-Orbit Coupled Fermionic Atoms in Optical Lattices

## TL;DR

This paper proposes a robust scheme to deterministically generate large-scale cluster states using spin-orbit coupled fermionic atoms in 3D optical lattices, advancing measurement-based quantum computation.

## Contribution

It introduces a novel method leveraging spin-orbit coupling and superexchange interactions to produce cluster states without engineered transport, suitable for long-coherence optical lattice clocks.

## Key findings

- Deterministic generation of macroscopic cluster states demonstrated.
- Scheme is robust against holes in the lattice.
- Potential for benchmarking quantum dynamics with collective measurements.

## Abstract

Measurement-based quantum computation, an alternative paradigm for quantum information processing, uses simple measurements on qubits prepared in cluster states, a class of multiparty entangled states with useful properties. Here we propose and analyze a scheme that takes advantage of the interplay between spin-orbit coupling and superexchange interactions, in the presence of a coherent drive, to deterministically generate macroscopic arrays of cluster states in fermionic alkaline earth atoms trapped in three dimensional (3D) optical lattices. The scheme dynamically generates cluster states without the need of engineered transport, and is robust in the presence of holes, a typical imperfection in cold atom Mott insulators. The protocol is of particular relevance for the new generation of 3D optical lattice clocks with coherence times $>10$ s, two orders of magnitude larger than the cluster state generation time. We propose the use of collective measurements and time-reversal of the Hamiltonian to benchmark the underlying Ising model dynamics and the generated many-body correlations.