First-order transition induced by topological defects in the O (3 ) principal chiral model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.094408
Abstract: Using Monte Carlo simulations, we study thermal and critical properties of two systems, in which domain walls and so-called $Z_2$-vortices as topological defects are presented. The main model is a lattice version of the $O(3)$… read more here.
Keywords: topological defects; order; transition; first order ... See more keywords
Tensor renormalization group approach to ( 1+1 )-dimensional SU(2) principal chiral model at finite density
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DOI: 10.1103/physrevd.107.094509
Abstract: We apply the tensor renormalization group method to the (1+1)-dimensional SU(2) principal chiral model at finite chemical potential with the use of the Gauss-Legendre quadrature to discretize the SU(2) Lie group. The internal energy at… read more here.
Keywords: renormalization group; principal chiral; density; tensor renormalization ... See more keywords
Principal Chiral Model in Correlated Electron Systems.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.227201
Abstract: We discuss noncollinear magnetic phenomena whose local order parameter is characterized by more than one spin vector. By focusing on the simple cases of 2D triangular and 3D pyrochlore lattices, we demonstrate that their low-energy… read more here.
Keywords: electron systems; principal chiral; model correlated; correlated electron ... See more keywords