All instances / Spinless t-V
Spinless t-V square 4x4, V = 0.1, n = 0.3125
tV/square_16_P_5_0.1
Record
-0.7376632(3)
E/site
VMC Determinant Slater-Backflow-Jastrow (RBM) Ansatz with K=0 projections (symmetric wrt translations)
Romero et al. (2024) · lowest eligible strict variational bound
(rules §6)
The Hamiltonian
H = −t ∑⟨ij⟩ (c†icj + h.c.) + V ∑⟨ij⟩ ninj
Spinless fermions, t = 1, V = 0.1, 5 particles on 16 sites.
- lattice
- square
- sites
- 16
- boundary
- periodic
- Nf
- 5
- V
- 0.1
- energies
- 5
Stored as a total energy in the convention of
VarBench; quoted here as
E/site, 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.
Strict variational upper bounds (4)
The record is the lowest eligible energy in this group, and only this group.
Numerically exact (1)
Exact diagonalization, an exact solution, or sign-problem-free QMC where that is established: the answer, not a claim about it.
Coverage
Newest published number here: 2024. Nothing has been added to this instance since the VarBench snapshot of 2024-10-22.