Ergodic Archimedean dimersWe study perfect matchings, or close-packed dimer coverings, of finite
sections of Archimedean lattices and give a constructive proof showing that any
two perfect matchings can be transformed into each other using small sets of
local ring-exchange moves. This result has direct consequences for formulating
quantum dimer models with a resonating valence bond ground state, i.e., a
superposition of all dimer coverings compatible with the boundary conditions.
On five of the composite Archimedean lattices we supplement the sufficiency
proof with translationally invariant reference configurations that prove the
strict necessity of the sufficient terms with respect to ergodicity. We provide
examples of and discuss frustration-free deformations of the quantum dimer
models on two tripartite lattices.
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