Statistical dynamics of a hard sphere gas: fluctuating Boltzmann equation and large deviations

T Bodineau, I Gallagher, L Saint-Raymond… - Annals of …, 2023 - projecteuclid.org
We present a mathematical theory of dynamical fluctuations for the hard sphere gas in the
Boltzmann-Grad limit. We prove that (1) fluctuations of the empirical measure from the …

Strong spatial mixing for repulsive point processes

M Michelen, W Perkins - Journal of Statistical Physics, 2022 - Springer
We prove that a Gibbs point process interacting via a finite-range, repulsive potential ϕ
exhibits a strong spatial mixing property for activities λ< e/Δ ϕ, where Δ ϕ is the potential …

Convergence of density expansions of correlation functions and the Ornstein–Zernike equation

T Kuna, D Tsagkarogiannis - Annales Henri Poincaré, 2018 - Springer
We prove absolute convergence of the multi-body correlation functions as a power series in
the density uniformly in their arguments. This is done by working in the context of the cluster …

[HTML][HTML] Revisiting Groeneveld's approach to the virial expansion

S Jansen - Journal of Mathematical Physics, 2021 - pubs.aip.org
A generalized version of Groeneveld's convergence criterion for the virial expansion and
generating functionals for weighted two-connected graphs is proven. This criterion works for …

Decay of correlations and uniqueness of the infinite-volume Gibbs measure of the canonical ensemble of 1d-lattice systems

Y Kwon, G Menz - Journal of Statistical Physics, 2019 - Springer
We consider a one-dimensional lattice system of unbounded, real-valued spins with
arbitrary strong, quadratic, finite-range interaction. We show the equivalence of correlations …

Liquid-Gas phase transition for Gibbs point process with Quermass interaction

D Dereudre, C Renaud-Chan - arxiv preprint arxiv:2309.08338, 2023 - arxiv.org
We prove the existence of a liquid-gas phase transition for continuous Gibbs point process
in $\mathbb {R}^ d $ with Quermass interaction. The Hamiltonian we consider is a linear …

Cluster expansions, trees, inversions and correlations

D Tsagkarogiannis - arxiv preprint arxiv:2304.12896, 2023 - arxiv.org
We review some recent progress on applications of Cluster Expansions. We focus on a
system of classical particles living in a continuous medium and interacting via a stable and …

Cluster expansion for the Ising model in the canonical ensemble

G Scola - Mathematical Physics, Analysis and Geometry, 2021 - Springer
We show the validity of the cluster expansion in the canonical ensemble for the Ising model.
We compare the lower bound of its radius of convergence with the one computed by the …

Local moderate and precise large deviations via cluster expansions

G Scola - Journal of Statistical Physics, 2021 - Springer
We consider a system of classical particles confined in a box\varLambda ⊂ R^ d Λ⊂ R d
with zero boundary conditions interacting via a stable and regular pair potential. Based on …

[HTML][HTML] A cluster expansion free method for computing higher derivatives of the free energy and estimating the error between the finite and infinite volume free energy

A Lo - Journal of Applied Mathematics and Physics, 2022 - scirp.org
The theory of phase transitions is one of the branches of statistical physics in which
smoothness and continuity play an important role. In fact, phase transitions are …