Correlations and structure of interfaces in the Ising model: theory and numerics

A Squarcini, A Tinti - Journal of Statistical Mechanics: Theory and …, 2021 - iopscience.iop.org
We consider phase separation on the strip for the two-dimensional Ising model in the near-
critical region. Within the framework of field theory, we find exact analytic results for certain …

Phase separation in a wedge: exact results

G Delfino, A Squarcini - Physical Review Letters, 2014 - APS
The exact theory of phase separation in a two-dimensional wedge is derived from the
properties of the order parameter and boundary condition changing operators in field theory …

On the theory of quantum quenches in near-critical systems

G Delfino, J Viti - Journal of Physics A: Mathematical and …, 2017 - iopscience.iop.org
The theory of quantum quenches in near-critical one-dimensional systems formulated in
Delfino (2014 J. Phys. A: Math. Theor. 402001) yields analytic predictions for the dynamics …

Shape and interfacial structure of droplets. Exact results and simulations

A Squarcini, A Tinti - Journal of Statistical Mechanics: Theory and …, 2023 - iopscience.iop.org
We consider the fluctuating interface of a droplet pinned on a flat wall. For such a system we
compare results obtained within the exact field theory of phase separation in two dimensions …

[HTML][HTML] Quantum quenches from an excited state

G Delfino, M Sorba - Nuclear Physics B, 2023 - Elsevier
Determining the role of initial conditions in the late time evolution is a key issue for the theory
of nonequilibrium dynamics of isolated quantum systems. Here we extend the theory of …

Fields, particles and universality in two dimensions

G Delfino - Annals of Physics, 2015 - Elsevier
We discuss the use of field theory for the exact determination of universal properties in two-
dimensional statistical mechanics. After a compact derivation of critical exponents of main …

[HTML][HTML] Interface in presence of a wall. Results from field theory

G Delfino, M Sorba, A Squarcini - Nuclear Physics B, 2021 - Elsevier
We consider three-dimensional statistical systems at phase coexistence in the half-volume
with boundary conditions leading to the presence of an interface. Working slightly below the …

Interfacially adsorbed bubbles determine the shape of droplets

A Squarcini, A Tinti - SciPost Physics, 2023 - scipost.org
The characterization of density correlations in the presence of strongly fluctuating interfaces
has always been considered a difficult problem in statistical mechanics. Here we study-by …

[HTML][HTML] Particles, string and interface in the three-dimensional Ising model

G Delfino, W Selke, A Squarcini - Nuclear Physics B, 2020 - Elsevier
We consider the three-dimensional Ising model slightly below its critical temperature, with
boundary conditions leading to the presence of an interface. We show how the interfacial …

Structure of interfaces at phase coexistence. Theory and numerics

G Delfino, W Selke, A Squarcini - Journal of Statistical Mechanics …, 2018 - iopscience.iop.org
We compare results of the exact field theory of phase separation in two dimensions with
Monte Carlo simulations for the q-state Potts model with boundary conditions producing an …