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4 papers · 2 filters
The Strength of First and Second Order Phase Transitions from Partition Function Zeroes
Wolfhard Janke, Ralph Kenna
We present a numerical technique employing the density of partition function zeroes (i) to distinguish between phase transitions of first and higher order, (ii) to examine the cros…
Universal amplitude ratios in finite-size scaling: three-dimensional Ising model
Martin Weigel, Wolfhard Janke
Motivated by the results of two-dimensional conformal field theory (CFT) we investigate the finite-size scaling of the mass spectrum of an Ising model on three-dimensional lattices…
Universal amplitude-exponent relation for the Ising model on sphere-like lattices
Martin Weigel, Wolfhard Janke
Conformal field theory predicts finite-size scaling amplitudes of correlation lengths universally related to critical exponents on sphere-like, semi-finite systems $S^{d-1}\times\m…
Monte Carlo study of the scaling of universal correlation lengths in three-dimensional O(n) spin models
Martin Weigel, Wolfhard Janke
Using an elaborate set of simulational tools and statistically optimized methods of data analysis we investigate the scaling behavior of the correlation lengths of three-dimensiona…