Numerical modeling of exciton-polariton Bose-Einstein condensate in a microcavity. A novel, optimized numerical method of modeling of an exciton–polariton superfluid in a semiconductor microcavity was proposed. Exciton–polaritons are spin-carrying quasiparticles formed from photons strongly coupled to excitons. They possess unique properties, interesting from the point of view of fundamental research as well as numerous potential applications. However, their numerical modeling is challenging due to the structure of nonlinear differential equations describing their evolution. In this paper, we propose to solve the equations with a modified Runge–Kutta method of 4th order, further optimized for efficient computations. The algorithms were implemented in form of C++ programs fitted for parallel environments and utilizing vector instructions. The programs form the EPCGP suite which has been used for theoretical investigation of exciton–polaritons.
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- Voronych, Oksana; Buraczewski, Adam; Matuszewski, Michał; Stobińska, Magdalena: Numerical modeling of exciton-polariton Bose-Einstein condensate in a microcavity (2017)