Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2007-07-18
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.1016/j.nuclphysb.2007.10.019
We present a detailed derivation of the renormalization group equations for two dimensional electromagnetic Coulomb gases whose charges lie on a triangular lattice (magnetic charges) and its dual (electric charges). The interactions between the charges involve both angular couplings and a new electromagnetic potential. This motivates the denomination of ``elastic'' Coulomb gas. Such elastic Coulomb gases arise naturally in the study of the continuous melting transition of two dimensional solids coupled to a substrate, either commensurate or with quenched disorder.
Carpentier David
Doussal Pierre Le
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