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All instances / J1-J2

J1-J2 triangular, 48 sites, J2 = 0.125

J1J2/triangular_48_P_0.125

No record

solved exactly (rules §6). Every row is still listed below.

The Hamiltonian

H = ∑⟨ij⟩ σi·σj + J2⟨⟨ij⟩⟩ σi·σj

J1 = 1, J2 = 0.125, nearest and next-nearest neighbours, written with Pauli matrices.

lattice
triangular
sites
48
boundary
periodic
J2
0.125
energies
48

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).

Every published energy

Grouped by what the number is. Ranking happens only inside the first group.

Numerically exact (48)

Exact diagonalization, an exact solution, or sign-problem-free QMC where that is established: the answer, not a claim about it.

E/N (S.S)σVar(E)V-score methodsourceyear
-0.517314443433854(2) 1.7e-15 n/a n/a Exact Diagonalization Gamma.D6.A1 1 Wietek et al. (2024) 2024
-0.51408058(3) 2.9e-8 n/a n/a Exact Diagonalization Gamma.D6.E2 1 Wietek et al. (2024) 2024
-0.50955439(2) 2.1e-8 n/a n/a Exact Diagonalization X2.D1.A 1 Wietek et al. (2024) 2024
-0.508609893179167(2) 1.8e-15 n/a n/a Exact Diagonalization X1.D1.A 1 Wietek et al. (2024) 2024
-0.507890014740104(1) 1.4e-15 n/a n/a Exact Diagonalization Gamma.D6.A2 1 Wietek et al. (2024) 2024
-0.5076903098(2) 2.3e-10 n/a n/a Exact Diagonalization K.D3.A1 -1 Wietek et al. (2024) 2024
-0.506347037525521(2) 1.9e-15 n/a n/a Exact Diagonalization M.D2.B2 1 Wietek et al. (2024) 2024
-0.506216380308854(2) 1.9e-15 n/a n/a Exact Diagonalization M.D2.A1 -1 Wietek et al. (2024) 2024
-0.505708(1) 1.3e-6 n/a n/a Exact Diagonalization Z.D1.A -1 Wietek et al. (2024) 2024
-0.5053562(3) 2.8e-7 n/a n/a Exact Diagonalization 0.C1.A 1 Wietek et al. (2024) 2024
-0.5049362(9) 8.7e-7 n/a n/a Exact Diagonalization Y.D1.B 1 Wietek et al. (2024) 2024
-0.504760982093750(2) 1.9e-15 n/a n/a Exact Diagonalization Gamma.D6.B1 -1 Wietek et al. (2024) 2024
-0.504384051535417(2) 1.9e-15 n/a n/a Exact Diagonalization M.D2.B1 1 Wietek et al. (2024) 2024
-0.50376542(2) 1.8e-8 n/a n/a Exact Diagonalization X2.D1.B 1 Wietek et al. (2024) 2024
-0.503414383221354(2) 1.6e-15 n/a n/a Exact Diagonalization X1.D1.B 1 Wietek et al. (2024) 2024
-0.5030326(3) 2.6e-7 n/a n/a Exact Diagonalization Y.D1.A 1 Wietek et al. (2024) 2024
-0.502679109800521(2) 2.0e-15 n/a n/a Exact Diagonalization Gamma.D6.E1 -1 Wietek et al. (2024) 2024
-0.502507643972396(2) 1.8e-15 n/a n/a Exact Diagonalization M.D2.A2 -1 Wietek et al. (2024) 2024
-0.5024183(2) 2.2e-7 n/a n/a Exact Diagonalization 0.C1.A -1 Wietek et al. (2024) 2024
-0.50227500(2) 1.8e-8 n/a n/a Exact Diagonalization X2.D1.A -1 Wietek et al. (2024) 2024
-0.502234207926042(4) 3.6e-15 n/a n/a Exact Diagonalization X1.D1.A -1 Wietek et al. (2024) 2024
-0.5022173(8) 7.6e-7 n/a n/a Exact Diagonalization K.D3.E -1 Wietek et al. (2024) 2024
-0.50182790(3) 3.2e-8 n/a n/a Exact Diagonalization Z.D1.B 1 Wietek et al. (2024) 2024
-0.501685421021354(2) 1.9e-15 n/a n/a Exact Diagonalization X0.D1.A 1 Wietek et al. (2024) 2024
-0.5015143(5) 5.1e-7 n/a n/a Exact Diagonalization Z.D1.A 1 Wietek et al. (2024) 2024
-0.500745032976562(2) 1.8e-15 n/a n/a Exact Diagonalization X0.D1.A -1 Wietek et al. (2024) 2024
-0.500346608323437(5) 4.7e-15 n/a n/a Exact Diagonalization X0.D1.B 1 Wietek et al. (2024) 2024
-0.50006456649583(2) 1.9e-14 n/a n/a Exact Diagonalization K.D3.E 1 Wietek et al. (2024) 2024
-0.499787436691146(2) 1.8e-15 n/a n/a Exact Diagonalization X0.D1.B -1 Wietek et al. (2024) 2024
-0.499455668416667(2) 1.9e-15 n/a n/a Exact Diagonalization M.D2.A1 1 Wietek et al. (2024) 2024
-0.49932390(7) 7.1e-8 n/a n/a Exact Diagonalization Y.D1.A -1 Wietek et al. (2024) 2024
-0.498833(2) 1.6e-6 n/a n/a Exact Diagonalization Y.D1.B -1 Wietek et al. (2024) 2024
-0.498554(4) 4.3e-6 n/a n/a Exact Diagonalization Z.D1.B -1 Wietek et al. (2024) 2024
-0.49811449(2) 1.7e-8 n/a n/a Exact Diagonalization X2.D1.B -1 Wietek et al. (2024) 2024
-0.497800870026563(2) 1.8e-15 n/a n/a Exact Diagonalization X1.D1.B -1 Wietek et al. (2024) 2024
-0.496925641207292(2) 1.7e-15 n/a n/a Exact Diagonalization K.D3.A1 1 Wietek et al. (2024) 2024
-0.496453775061458(2) 1.8e-15 n/a n/a Exact Diagonalization M.D2.B2 -1 Wietek et al. (2024) 2024
-0.495366985686979(2) 1.7e-15 n/a n/a Exact Diagonalization M.D2.A2 1 Wietek et al. (2024) 2024
-0.494824510020833(2) 1.8e-15 n/a n/a Exact Diagonalization K.D3.A2 1 Wietek et al. (2024) 2024
-0.494807(3) 3.2e-6 n/a n/a Exact Diagonalization K.D3.A2 -1 Wietek et al. (2024) 2024
-0.4938707(2) 1.7e-7 n/a n/a Exact Diagonalization Gamma.D6.B2 -1 Wietek et al. (2024) 2024
-0.493285813240625(2) 2.4e-15 n/a n/a Exact Diagonalization M.D2.B1 -1 Wietek et al. (2024) 2024
-0.492765100647917(2) 1.7e-15 n/a n/a Exact Diagonalization Gamma.D6.E2 -1 Wietek et al. (2024) 2024
-0.492708955941667(2) 1.9e-15 n/a n/a Exact Diagonalization Gamma.D6.A1 -1 Wietek et al. (2024) 2024
-0.491663208422396(2) 1.6e-15 n/a n/a Exact Diagonalization Gamma.D6.B1 1 Wietek et al. (2024) 2024
-0.4902970569760(1) 1.1e-13 n/a n/a Exact Diagonalization Gamma.D6.B2 1 Wietek et al. (2024) 2024
-0.490204(2) 1.5e-6 n/a n/a Exact Diagonalization Gamma.D6.E1 1 Wietek et al. (2024) 2024
-0.489564953143229(2) 1.7e-15 n/a n/a Exact Diagonalization Gamma.D6.A2 -1 Wietek et al. (2024) 2024

Coverage

Newest published number here: 2024. Nothing has been added to this instance since the VarBench snapshot of 2024-10-22.

This instance as data

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