MacKenzie Wooten

Metamaterials based on regular two-dimensional arrays of thin wires have attracted renewed attention in light of a recently proposed strategy to search for dark-matter axions. The metamaterial-based resonator concept was specifically motivated by recent stringent predictions for the axion mass in one cosmological scenario, which are expected to improve further in the near future.

1 Introduction The axion, a light pseudoscalar emerging from the Peccei–Quinn mechanism to suppress CP-violating effects in the strong interaction[1-3] would also be copiously produced in the early universe, and thus represents an interesting dark matter candidate. The mass of the axion corresponding to the estimated dark matter density of the universe, however is largely unconstrained over eleven orders of magnitude.