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Condensed Matter > Statistical Mechanics
Title: Boundary critical behavior of the three-dimensional Heisenberg universality class
(Submitted on 30 Nov 2020 (v1), last revised 30 Mar 2021 (this version, v2))
Abstract: We study the boundary critical behavior of the three-dimensional Heisenberg universality class, in the presence of a bidimensional surface. By means of high-precision Monte Carlo simulations of an improved lattice model, where leading bulk scaling corrections are suppressed, we prove the existence of a special phase transition, with unusual exponents, and of an extraordinary phase with logarithmically decaying correlations. These findings contrast with na\"ive arguments on the bulk-surface phase diagram, and allow us to explain some recent puzzling results on the boundary critical behavior of quantum spin models.
Submission history
From: Francesco Parisen Toldin [view email][v1] Mon, 30 Nov 2020 19:00:17 GMT (169kb,D)
[v2] Tue, 30 Mar 2021 21:28:04 GMT (173kb,D)
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