Fig. 6: Spin-spin correlations in the hydrogen lattice.
From: Simple Fermionic backflow states via a systematically improvable tensor decomposition
Two-point instantaneous spin-spin correlation function for the ground state of the 6 × 6 hydrogen lattice between atoms at two different interatomic distances d = 1.2 Å (blue) and d = 3.0 Å (green). Correlation function is given as a function of normalized radial interatomic distance between atoms in the correlator, showing nearest, next-nearest and next-next-nearest magnetic correlations. The correlators were computed from the optimized CPD backflow ansatz with M = 1.
