Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
978236 | Physica A: Statistical Mechanics and its Applications | 2007 | 8 Pages |
Abstract
We propose a novel way of investigating the universal properties of spin systems by coupling them to an ensemble of causal dynamically triangulated lattices, instead of studying them on a fixed regular or random lattice. Somewhat surprisingly, graph-counting methods to extract high- or low-temperature series expansions can be adapted to this case. For the two-dimensional Ising model, we present evidence that this ameliorates the singularity structure of thermodynamic functions in the complex plane, and improves the convergence of the power series.
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Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
D. Benedetti, R. Loll,