The two-dimensional Ising model is the simplest model of statistical mechanics exhibiting a
second-order phase transition. While in absence of magnetic field it is known to be solvable …

A bstract We carry out a systematic study of the effective bosonic string describing confining
flux tubes in SU (N) Yang-Mills theories in three spacetime dimensions. While their low …

Higher-order conformal perturbation theory is studied for theories with and without
boundaries. We identify systematically the universal quantities in the beta function …

A bstract We present a study of the effective string that describes the infrared dynamics of SU
(2) Yang-Mills theory in three dimensions. By combining high-precision lattice simulation …

A bstract We discuss dynamical response functions near quantum critical points, allowing for
both a finite temperature and detuning by a relevant operator. When the quantum critical …

Using recent thermodynamic Bethe ansatz results, we derive exact analytical expressions
for the critical amplitudes in the scaling laws for the fermion condensate and for the mass …

A bstract We consider conformal perturbation theory for n-point functions on the sphere in
general 2D CFTs to first order in coupling constant. We regulate perturbation integrals using …

We propose a general method for the numerical evaluation of operator product expansion
coefficients in three dimensional conformal field theories based on the study of the …

The scaling form of the free energy near a critical point allows for the definition of various
thermodynamical amplitudes and the determination of their dependence on the microscopic …

We discuss the two-and three-point correlators in the two-dimensional three-state Potts
model in the high temperature phase of the model. By using the form factor approach and …