V. APPENDIX A: COMPUTATIONAL DETAILS Helium Chains: xBW2 and BW2 were implemented in NumPy using pySCF to generate molecular integrals. The cc-pVDZ basis was used for the Helium chain calculations. Homogeneous Electron Gas: HEG calculations are performed with a modified version of the UEGCCD code. Hubbard Model: Calculations on the Hubbard Models were performed with custom NumPy implementations of (regularized) MP2 and VCCD. FCI calculations were performed with pySCF. Water-Graphene Interaction: Water physisorption is considered in the 2-leg geometry as discussed in Ref [51]. The interaction energy E int at the equilibrium distance d is obtained as