Extended Data Fig. 1: Effective interactions and spin dynamics for a 51-ion chain.
From: Exploring large-scale entanglement in quantum simulation

(a) Experimentally measured nearest-neighbor interaction terms Ji,i+1, compared to theoretical calculations (solid line). (b) The quench dynamics of a single spin initialized to a spin-up state in the middle of the ion chain, while other spins initialized to a spin-down state, under the engineered flip-flop type interaction plotted in discs and solid lines are numerical results. (c) Theoretically calculated interaction matrix for the experimental parameters.