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arXiv · 1103.2003

Coherent interactions between phonons and exciton or exciton-polariton condensates

D. V. Vishnevsky·N. A. Gippius·I. A. Shelykh·D. D. Solnyshkov·G. Malpuech
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Abstract

We analyse the interaction of exciton and exciton-polariton condensates in semiconductor microcavity with a coherent acoustic wave. An analytical solution for the dispersion of excitations of coupled condensate-phonon system is found in the approximation of k-independent interactions. Accounting for k-dependence results in a stronger modification of the dispersion, and even in the appearance of the "roton instability" region.

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D. V. Vishnevsky, N. A. Gippius, I. A. Shelykh, D. D. Solnyshkov, G. Malpuech. 2011-03-10. Coherent interactions between phonons and exciton or exciton-polariton condensates. https://doi.org/10.1103/physrevb.84.035312

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