Coherent interactions between phonons and exciton or exciton-polariton condensates

Details Coherent interactions between phonons and exciton or exciton-polariton condensates Coherent interactions between phonons and exciton or exciton-polariton condensates

2011-03-10

arxiv.org/abs/1103.2003v1

Physics

Condensed Matter

Materials Science

Scientific paper

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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