164 citations
- Maxwell Institute for Mathematical SciencesGB30 papers
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Showing cond-mat.dis-nnShow all
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cond-mat.dis-nn2007★ 16 cited
Zero-temperature phase of the XY spin glass in two dimensions: Genetic embedded matching heuristic
Martin Weigel, Michel J. P. Gingras
For many real spin-glass materials, the Edwards-Anderson model with continuous-symmetry spins is more realistic than the rather better understood Ising variant. In principle, the n…
cond-mat.dis-nn2007★ 19 cited
Frustration effects in antiferromagnets on planar random graphs
Martin Weigel, Des Johnston
We consider the effect of geometric frustration induced by the random distribution of loop lengths in the "fat" graphs of the dynamical triangulations model on coupled antiferromag…
cond-mat.dis-nn2006★ 2 cited
Spin and chiral stiffness of the XY spin glass in two dimensions
Martin Weigel, Michel J. P. Gingras
We analyze the zero-temperature behavior of the XY Edwards-Anderson spin glass model on a square lattice. A newly developed algorithm combining exact ground-state computations for…