Coherent interactions between phonons and exciton or exciton-polariton condensates

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

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We analyze the interaction of exciton and exciton-polariton condensates in a semiconductor microcavity with a coherent acoustic wave. An analytical solution for the dispersion of excitations of the 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 a roton instability region.

Original languageEnglish
Article number035312
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
Publication statusPublished - 11 Jul 2011
Externally publishedYes


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