CEREMADE
Poisat Julien
Associate Professor
Biography
Julien Poisat is maître de conférences at Université Paris-Dauphine since September 2014. He defended his PhD thesis in May 2012 at Université Lyon 1 and was a postdoctoral researcher at University of Leiden (Netherlands) between 2012 and 2014. Alumnus of ENS Cachan (2005-2009).
His research fields are Probability Theory and Statistical Mechanics, with a focus on random walks and polymer models.
Publications
Articles
Poisat J., Simenhaus F. (2020), A limit theorem for the survival probability of a simple random walk among power-law renewal obstacles, Annals of Applied Probability, vol. 30, n°5, p. 2030-2068 
Cheliotis D., Chino Y., Poisat J. (2019), The random pinning model with correlated disorder given by a renewal set, Annales Henri Lebesgue, n°2, p. 281-329
Berger Q., Den Hollander F., Poisat J. (2018), Annealed scaling for a charged polymer in dimensions two and higher, Journal of Physics A: Mathematical and Theoretical, vol. 51, n°5, p. n°054002
Erhard D., Martínez J., Poisat J. (2017), Brownian Paths Homogeneously Distributed in Space: Percolation Phase Transition and Uniqueness of the Unbounded Cluster, Journal of Theoretical Probability, vol. 30, n°3, p. 784-812
Caravenna F., den Hollander F., Pétrélis N., Poisat J. (2016), Annealed Scaling for a Charged Polymer, Mathematical Physics, Analysis and Geometry, vol. 19, n°2
Erhard D., Poisat J. (2016), Asymptotics of the critical time in Wiener sausage percolation with a small radius, ALEA : Latin American Journal of Probability and Mathematical Statistics, vol. 13, n°1, p. 417–445
Berger Q., Poisat J. (2015), On the critical curves of the pinning and copolymer models in correlated Gaussian environment, Electronic Journal of Probability, vol. 20, p. n°71
Prépublications / Cahiers de recherche
Poisat J., Erhard D. (2023), Uniqueness and tube property for the Swiss cheese large deviations, Paris, Cahier de recherche CEREMADE, Université Paris Dauphine-PSL, 43 p.
Erhard D., Poisat J. (2023), Strong large deviation principles for pair empirical measures of random walks in the Mukherjee-Varadhan topology, Paris, Cahier de recherche CEREMADE, Université Paris Dauphine-PSL, 17 p.
Poisat J., Simenhaus F. (2022), Localization of a one-dimensional simple random walk among power-law renewal obstacles, Paris, Cahier de recherche CEREMADE, Université Paris Dauphine-PSL, 55 p.
Poisat J., Simenhaus F. (2018), A limit theorem for the survival probability of a simple random walk among power-law renewal traps, Paris, Cahier de recherche CEREMADE, Université Paris Dauphine-PSL, 36 p.