Abstract
We study a model of close-packed dimers on the square lattice with a nearest neighbor interaction between parallel dimers. This model corresponds to the classical limit of quantum dimer models [D. S. Rokhsar and S. A. Kivelson, Phys. Rev. Lett. 61, 2376 (1988)]. By means of Monte Carlo and transfer matrix calculations, we show that this system undergoes a Kosterlitz-Thouless transition separating a low temperature ordered phase where dimers are aligned in columns from a high temperature critical phase with continuously varying exponents. This is understood by constructing the corresponding Coulomb gas, whose coupling constant is computed numerically. We also discuss doped models and implications on the finite-temperature phase diagram of quantum dimer models. Show more
Publication status
publishedExternal links
Journal / series
Physical Review LettersVolume
Pages / Article No.
Publisher
American Physical SocietyOrganisational unit
03622 - Troyer, Matthias (ehemalig) / Troyer, Matthias (former)
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ETH Bibliography
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