  We study the non-equilibrium dynamics of a quantum spin 1/2 XXZ model
confined in a two-dimensional bi-layer system, with couplings mediated by
inverse power-law interactions, falling off with distance $r$ as
$1/r^{\alpha}$, and spatio-temporal control of the spins enabled via local
fields. An initial state of spins with opposite magnetization in the two layers
is dynamically unstable resulting in exponential generation of correlated pairs
of excitations. We find that scalable generation of entanglement in the form of
two-mode squeezing between the layers can generically be achieved in powerlaw
models. We further demonstrate that spatially-temporally engineered
interactions allow to significantly increase the generated entanglement and in
fact achieve Heisenberg limited scaling. This work is relevant to a wide
variety of experimental atomic, molecular, and optical platforms, which realize
powerlaw spin models, and demonstrates the advantage of spatio-temporal control
to maximize the generation of metrologically useful entanglement, with
potential applications in quantum-enhanced sensing.
