https://doi.org/10.1140/epjp/s13360-024-05105-2
Regular Article
Modulational instability mechanisms in exciton-polariton condensates
1
Laboratory of Mechanics and Complex Systems, Department of Physics, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
2
Laboratory of Applied Physics and Engineering, Department of Materials Engineering and Natural Resources Valorization, Advanced School of Mines Processing and Energy Resources, University of Bertoua, P.O. Box 416, Bertoua, Cameroon
Received:
1
November
2023
Accepted:
14
March
2024
Published online:
26
April
2024
The objective of the present paper is to investigate the behaviour of exciton-polariton condensates using the modulational instability mechanism. The study incorporates a complex state that involves quintic order nonlinearity due to polariton energy shift effects, as well as nonlinear dispersion effects. The investigation considers both constant and temporally variable wave numbers and cubic dispersion parameters. The results of the study indicate that various factors, including the physical parameters of the system, wave number, time variability, and construction constants of the field vector, influence the amplitude and configuration of the breather wave function.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
