A scheme to create and verify scalable entanglement in optical lattice

To achieve scalable quantum information processing, great efforts have been devoted to the creation of large-scale entangled states in various physical systems. Ultracold atom optical lattice is considered as one promising platforms due its feasible initialization and parallel manipulation. In this work, we propose an efficient scheme generate characterize global entanglement lattice. With only two-layer circuits, generation utilizes two-qubit entangling gates based on superexchange interaction double wells. The parallelism these operations enables be fast scalable. verify non-stabilizer state, mainly design three complementary detection protocols which are less resource-consuming compared full tomography. particular, just needs two homogenous local measurement settings identify property. Our verification provide foundation for further processing