The Hamiltonian
H = ∑⟨ij⟩ σi·σj + J2 ∑⟨⟨ij⟩⟩ σi·σj
J1 = 1, J2 = 0.6, nearest and next-nearest neighbours, written with Pauli matrices.
- lattice
- square
- sites
- 324
- boundary
- periodic
- J2
- 0.6
- energies
- 2
Stored as a total energy in the convention of
VarBench; quoted here as
E/N (S.S), which is what the papers report
(how the conversion works).
How these numbers were read
Rows added after the VarBench import record where the number came from.
-0.4765200 — CNN (CNN1, 1 Lanczos step)
Checked 2026-10-07 · source text of arXiv:2204.07816 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading
Reported as. −0.476 52
Table 1 of the published article ('achieved by CNN1 with 106 529 parameters. The values are obtained by the Lanczos step with p = 1'), row 18 x 18, column 0.60; no error bar printed | Energy per site in S.S units on periodic lattices (abstract: 'rectangular lattices within periodic boundary conditions'); its 10x10 cells at J2 = 0.50 and 0.60 equal the rows QMBL already carries.
-0.4752000 — CNN
Checked 2026-10-07 · source text of arXiv:2108.13830 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading
Reported as. -0.4752
Table 4 ('Energies for varied J2/J1 && system scales'), row 18 x 18, column 0.60; no error bar printed | Energy per site in S.S units, periodic boundary conditions (text: 'periodic boundary condition'); the 10x10 and 16x16 cells at J2 = 0.50 equal the rows QMBL already carries from this table.