Table 1 Total energies of graphene in Hartrees for a primitive cell, as computed by VMC, after the structure factor correction (SFC) and after adding ZPVE

From: Transferable neural wavefunctions for solids

 

Twist

Weight

Total energy

Total energy + SFC

Total energy + SFC + ZPVE

DeepSolid

k1 = (0, 0)

1/9

−76.1559

−76.1534

−76.1406

k2 = (1/3, 1/3)

2/3

−76.2495

−76.2470

−76.2342

k3 = (2/3, 1/3)

2/9

−76.2631

−76.2607

−76.2479

Our work

k1 = (0, 0)

1/9

−76.1572(2)

−76.1542(2)

−76.1414(2)

k2 = (1/3, 1/3)

2/3

−76.2572(2)

−76.2543(2)

−76.2415(2)

k3 = (2/3, 1/3)

2/9

−76.2590(2)

−76.2560(2)

−76.2432(2)

  1. The table compares our results against the total energies computed with DeepSolid18 at the three symmetry-inequivalent twists on the 3 × 3 Monkhorst–Pack grid. The twists are expressed in the basis of the reciprocal lattice vectors.