Showing math.PRShow all
3 papers · 1 filter
math.PR2025
Variational representation and estimates for the free energy of a quenched charged polymer model
Julien Poisat
Random walks with a disordered self-interaction potential may be used to model charged polymers. In this paper we consider a one-dimensional and directed version of the charged pol…
math.PR2018
A limit theorem for the survival probability of a simple random walk among power-law renewal traps
Julien Poisat, François Simenhaus
We consider a one-dimensional simple random walk surviving among a field of static soft traps : each time it meets a trap the walk is killed with probability 1--e -- , where …
math.PR2010
Two Pinning Models with Markov disorder
Julien Poisat
Disordered pinning models deal with the (de)localization tran- sition of a polymer in interaction with a heterogeneous interface. In this paper, we focus on two models where the in…