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All instances / Heisenberg

Heisenberg shuriken, 96 sites

Best values (rules §6)

best variational -0.43826(1) VMC (PP)
Wu et al. (2024) · the lowest unflagged variational energy, a strict variational bound

Energies as E/N (S.S). Classes are different claims and are not ranked against each other.

The Hamiltonian

H = ∑⟨ij⟩ σi·σj

Nearest-neighbour Heisenberg antiferromagnet, J = 1, written with Pauli matrices.

lattice
shuriken
sites
96
boundary
periodic
energies
1

Stored as a total energy; 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. The exact energy comes first where there is one; in every other group the lowest unflagged energy is its best value, and each row's distance is to that best (rules §6).

Strict variational upper bounds (1)

Energies that a variational state reached (VMC, DMRG and MPS at finite bond dimension, PEPS, NQS, VQE). Each is an upper bound on the ground-state energy.

E/N (S.S)distance to class bestσVar(E)V-score methodsourcecodeyearcomment
-0.43826best variational 0 1.2e-5 7.56e+0 2.6e-2 VMC (PP) Wu et al. (2024) uses mVMC 2024

Coverage

Newest published number here: 2024. Literature last checked 2026-09-15 (citation screen of Astrakhantsev et al. 2021 (PRB 104, L220408, shuriken): citing works from OpenAlex and Semantic Scholar (scripts/cited_by.mjs)): 8 papers read, 0 of them with an energy on this page.

This instance as data

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