249 citations · 2.8k across the 60 of their papers we have counts for
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Nonequilibrium Critical Dynamics of the 2D XY model
Ludovic Berthier, Peter C. W. Holdsworth, Mauro Sellitto
The nonequilibrium critical dynamics of the 2D XY model is investigated numerically through Monte Carlo simulations and analytically in the spin-wave approximation. We focus in par…
Magnetic fluctuations in the classical XY model: the origin of an exponential tail in a complex system
S. T. Bramwell, J. -Y. Fortin, P. C. W. Holdsworth +4
We study the probability density function for the fluctuations of the magnetic order parameter in the low temperature phase of the XY model of finite size. In two-dimensions this s…
Frustrated Order by Disorder: the Pyrochlore Antiferromagnet with Bond Disorder
L. Bellier-Castella, M. J. P. Gingras, P. C. W. Holdsworth +1
The classical Heisenberg antiferromagnet on the pyrochlore lattice is macroscopically and continuously degenerate and the system remains disordered at all temperatures, even in the…
Violation of ensemble equivalence in the antiferromagnetic mean-field XY model
Thierry Dauxois, Peter Holdsworth, Stefano Ruffo
It is well known that long-range interactions pose serious problems for the formulation of statistical mechanics. We show in this paper that ensemble equivalence is violated in a s…