Quantum phase transitions are a fascinating area of condensed matter physics. The
extension through complexification not only broadens the scope of this field but also offers a …

We study the complex zeros of the partition function of the Ising model, viewed as a
polynomial in the “interaction parameter”; these are known as Fisher zeros in light of their …

The presence of nearby conformal field theories (CFTs) hidden in the complex plane of the
tuning parameter was recently proposed as an elegant explanation for the ubiquity of …

We study the zeros of the partition function in the complex temperature plane (Fisher zeros)
and in the complex external field plane (Lee–Yang zeros) of a frustrated Ising model with …

In classical statistical physics, a phase transition is understood by studying the geometry (the
zero-set) of an associated polynomial (the partition function). In this thesis, we will show that …

In our previous research, by combining both the exact enumeration method (microcanonical
transfer matrix) for a small system (L= 9) with the Wang–Landau Monte Carlo algorithm for …

The Fisher zeros of the Baxter–Wu model are examined for the first time and for two series of
finite-sized systems, with'spherical'boundary conditions, their location is found to be …

In this paper, we directly obtain from Monte Carlo simulations the critical magnetic field H= 0.
29 (3) of the field-induced Kosterlitz–Thouless transition in the critical triangular-lattice …

Phase transitions and critical phenomena are the most universal phenomena in nature. To
understand the phase transitions and critical phenomena of a given system as a continuous …

The Ising model, consisting of magnetic spins, is the most important system in understanding
phase transitions and critical phenomena. For the first time, the exact integer values for the …