Colorings of odd or even chirality on hexagonal lattices
arXiv:1611.02925 · doi:10.1103/PhysRevB.95.064405
Abstract
We define two classes of colorings that have odd or even chirality on hexagonal lattices. This parity is an invariant in the dynamics of all loops, and explains why standard Monte-Carlo algorithms are nonergodic. We argue that adding the motion of "stranded" loops allows for parity changes. By implementing this algorithm, we show that the even and odd classes have the same entropy. In general, they do not have the same number of states, except for the special geometry of long strips, where a Z symmetry between even and odd states occurs in the thermodynamic limit.
arXiv comment18 pages, 13 figures
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- Invariants of winding-numbers and steric obstruction in dynamics of flux lines
- Phase-space networks and connectivity of the kagome antiferromagnet