  We develop a rigorous framework for modelling the geometry equilibration of
crystalline defects. We formulate the equilibration of crystal defects as a
variational problems on a discrete energy space and establish qualitatively
sharp far-field decay estimates for the equilibrium configuration. This work
extends Ehrlacher, Ortner, Shapeev (2016) by admitting infinite-range
interaction which in particular includes some quantum chemistry based
interatomic potentials.
