Uniaxial modulation and the Berezinskii-Kosterlitz-Thouless transition
arXiv:2302.10335 · doi:10.1103/PhysRevB.107.195439
Abstract
We present a theoretical study of the Berezinskii-Kosterlitz-Thouless transition of a two-dimensional superfluid in the presence of an externally imposed density modulation along a single axis. The subject is investigated in the context of the classical field theory, by means of analytical and numerical techniques. We show that, as the amplitude of the modulation increases, the physics of the system approaches that of the anisotropic - model, with a suppressed superfluid transition temperature and an anisotropic response, but with no dimensional crossover.
arXiv comment8 pages, 3 figures
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