Ordered Dissipative Structures in Exciton Systems in Semiconductor Quantum Wells
arXiv:cond-mat/0508282 · doi:10.3842/SIGMA.2006.025
Abstract
A phenomenological theory of exciton condensation in conditions of inhomogeneous excitation is proposed. The theory is applied to the study of the development of an exciton luminescence ring and the ring fragmentation at macroscopical distances from the central excitation spot in coupled quantum wells. The transition between the fragmented and the continuous ring is considered. With assumption of a defect in the structure, a possibility of a localized island of the condensed phase in a fixed position is shown. Exciton density distribution is also analyzed in the case of two spatially separated spots of the laser excitation.
Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
References in corpus (5)
- Macroscopically ordered state in exciton system
- Origin of the inner ring in photoluminescence patterns of quantum well excitons
- Pattern Formation in Exciton System near Quantum Degeneracy
- Moving Beyond a Simple Model of Luminescence Rings in Quantum Well Structures
- Formation of an order in a system of exciton condensed phase islands in quantum wells