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20212026
most citedInfinite disorder renormalization fixed point for the continuum random field Ising chain

2 citations · 3 across the 9 of their papers we have counts for

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math.PR2026

Random interlacements on transient weighted graphs: 0-1 laws and FKG inequality

Orphée Collin

We study some properties of the random interlacement model on a transient weighted graph, which was introduced by A. Teixeira in ["Interlacement percolation on transient weighted g…

math.PR2025

Further results on the free energy of the random field Ising chain in the case of centered disorder

Orphée Collin

We study the expansion of the limiting free energy density of the random field Ising chain with centered IID disorder and homogeneous coupling parameter, when the latter goes to in…

math.PR2025

On the Lyapunov exponent for the random field Ising transfer matrix, in the critical case

Orphée Collin, Giambattista Giacomin, Rafael L. Greenblatt +1

We study the top Lyapunov exponent of a product of random matrices appearing in the analysis of several statistical mechanical models with disorder, extending a previo…

math.PR2024

On the shape of the connected components of the complement of two-dimensional Brownian random interlacements

Orphée Collin, Serguei Popov

We study the limiting shape of the connected components of the vacant set of two-dimensional Brownian random interlacements: we prove that the connected component around is clo…

math.PR2024

On the large interaction asymptotics of the free energy density of the Ising chain with disordered centered external field

Orphée Collin

This article completes [G. Giacomin, R. Greenblatt, ALEA 2022] by identifying explicitly the leading coefficient in the asymptotic development of the free energy density of the cen…

math.PR2024

The random field Ising chain domain-wall structure in the large interaction limit

Orphée Collin, Giambattista Giacomin, Yueyun Hu

We study the configurations of the nearest neighbor Ising ferromagnetic chain with IID centered and square integrable external random field in the limit in which the pairwise inter…

math.PR2023

Rate of escape of the conditioned two-dimensional simple random walk

Orphée Collin, Serguei Popov

We prove sharp asymptotic estimates for the rate of escape of the two-dimensional simple random walk conditioned to avoid a fixed finite set. We derive it from asymptotics availabl…

math.PR2023★ 2 cited

Infinite disorder renormalization fixed point for the continuum random field Ising chain

Orphée Collin, Giambattista Giacomin, Yueyun Hu

We consider the continuum version of the random field Ising model in one dimension: this model arises naturally as weak disorder scaling limit of the original Ising model. Like for…

math.PR2022

Two-dimensional random interlacements: 0-1 law and the vacant set at criticality

Orphée Collin, Serguei Popov

We correct and streamline the proof of the fact that, at the critical point , the vacant set of the two-dimensional random interlacements is infinite (Comets, Popov, 2017). Al…

math.PR2022★ 1 cited

The free energy of a box-version of the interacting Bose gas

Orphée Collin, Benedikt Jahnel, Wolfgang König

The interacting quantum Bose gas is a random ensemble of many Brownian bridges (cycles) of various lengths with interactions between any pair of legs of the cycles. It is one of th…

math.PR2021

Rate of escape of conditioned Brownian motion

Orphée Collin, Francis Comets

We study the norm of the two-dimensional Brownian motion conditioned to stay outside the unit disk at all times. By conditioning the process is changed from barely recurrent to sli…