title: Stochastic Simulator for modeling the transition to lasing.
abstract: A Stochastic Simulator (SS) is proposed, based on a semiclassical description of the radiation-matter interaction, to obtain an efficient description of the lasing transition for devices ranging from the nanolaser to the traditional "macroscopic" laser. Steady-state predictions obtained with the SS agree both with more traditional laser modeling and with the description of phase transitions in small-sized systems, and provide additional information on fluctuations. Dynamical information can easily be obtained, with good computing time efficiency, which convincingly highlights the role of fluctuations at threshold.
authors.forename: G P
authors.initials: GP
authors.lastname: Puccioni
authors.forename: G L
authors.initials: GL
authors.lastname: Lippi