All instances / Spinless t-V
Spinless t-V chain, 32 sites, V = 1, n = 0.5
tV/chain_32_P_16_1
Record
-0.4983390
E/site
DMRG (maxbonddim = 573)
run script, no paper cited · lowest eligible strict variational bound
(rules §6)
The Hamiltonian
H = −t ∑⟨ij⟩ (c†icj + h.c.) + V ∑⟨ij⟩ ninj
Spinless fermions, t = 1, V = 1, 16 particles on 32 sites.
- lattice
- chain
- sites
- 32
- boundary
- periodic
- Nf
- 16
- V
- 1
- energies
- 4
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 (2)
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.
Not yet classified (1)
The method string does not say whether the energy is sign-problem-free or constrained, so no bound_type could be assigned without guessing.
Coverage
Newest published number here: 2016. Nothing has been added to this instance since the VarBench snapshot of 2024-10-22.