Showing that the location of the zeros of the partition function can be used to study phase
transitions, Yang and Lee initiated an ambitious and very fruitful approach. We give an …

We present a numerical calculation of the Lee-Yang and Fisher zeros of the 2D Ising model
using multipoint Padé approximants. We perform simulations for the 2D Ising model with …

Using the electrostatic analogy, we derive an exact formula for the limiting Yang-Lee zero
distribution in the random allocation model of general weights. This exhibits a real-space …

We present some applications of the Lambert W function (⁠ W function) to the formalism of
quantum statistics (QS). We consider the problem of finding extrema in terms of energy for a …

Understanding the relationship which integrable (solvable) models, all of which possess
very special symmetry properties, have with the generic non-integrable models that are used …

We study the confinement scenario in N= 2 supersymmetric SU (2) gauge theory near the
monopole point upon breaking of N= 2 supersymmetry by the adjoint matter mass term. We …

We present exact calculations of the partition function Z of the q-state Potts model and its
generalization to real q, for arbitrary temperature on n-vertex ladder graphs, ie, strips of the …

An important question in graph theory is the following: Using q different colors, what is the
number of ways P (G, q) in which one can color a graph G, having n vertices, such that no …

We study the Yang-Lee zeros of a random matrix partition function with the global
symmetries of the QCD partition function. We consider both zeros in the complex chemical …

The presence of a chemical potential completely changes the analytical structure of the QCD
partition function. In particular, the eigenvalues of the Dirac operator are distributed over a …