Frustrated Magnet — Kagome Lattice

Antiferromagnetic Ising spins on the kagome lattice — macroscopic ground-state degeneracy

Energy: 0
Frustrated bonds: 0
The kagome lattice is built from corner-sharing triangles. With antiferromagnetic coupling (J>0), each triangle must have at least one frustrated bond — where neighboring spins are parallel. The ground state has extensive degeneracy: entropy scales as S ~ N·ln(2)/9. Click spins to flip them. Zero-point entropy = (1/3)·ln(3/2) per spin — the system remains disordered even at T=0.