Polariton condensation in dynamic acoustic latticesPolariton condensation in dynamic acoustic lattices
Faculty of Sciences. Physics
Theory of quantum systems and complex systems
2010New York, N.Y., 2010
Physical review letters. - New York, N.Y.
105(2010):11, 4 p.
We demonstrate that the tunable potential introduced by a surface acoustic wave on a homogeneous polariton condensate leads to fragmentation of the condensate into an array of wires which move with the acoustic velocity. Reduction of the spatial coherence of the condensate emission along the surface acoustic wave direction is attributed to the suppression of coupling between the spatially modulated condensates. Interparticle interactions observed at high polariton densities screen the acoustic potential, partially reversing its effect on spatial coherence.