%0 Journal Article %T Polariton condensation threshold investigation through the numerical resolution of the generalized Gross-Pitaevskii equation %+ Laboratoire Charles Coulomb (L2C) %A Gargoubi, Hamis %A Guillet, Thierry %A Jaziri, Sihem %A Balti, Jalloul %A Guizal, Brahim %< avec comité de lecture %Z L2C:16-217 %@ 1539-3755 %J Physical Review E : Statistical, Nonlinear, and Soft Matter Physics %I American Physical Society %V 94 %P 043310 %8 2016-10-18 %D 2016 %R 10.1103/PhysRevE.94.043310 %K condensation de Bose Einstein Polaritons de micro-cavité %Z Physics [physics]/Mathematical Physics [math-ph] %Z Physics [physics]/Quantum Physics [quant-ph]Journal articles %X We present a numerical approach for the solution of the dissipative Gross-Pitaevskii equation coupled to the reservoir equation governing the exciton-polaritons Bose-Einstein condensation. It is based on the finite difference method applied to space variables and on the fourth order Range-Kutta algorithm applied to the time variable. Nu- merical tests illustrate the stability and accuracy of the proposed scheme. Then results on the behavior of the con- densate under large Gaussian pumping and around the threshold are presented. We determine the threshold through the particular behavior of the self-energy and characterize it by tracking the establishment time of the steady state. %G English %L hal-01420542 %U https://hal.science/hal-01420542 %~ CNRS %~ L2C %~ TDS-MACS %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021