Comment on "Photoluminescence ring formation in coupled quantum wells: Excitonic versus ambipolar diffusion"
arXiv:0909.4265 · doi:10.1103/PhysRevLett.104.179701
Abstract
This is a comment on M. Stern, V. Garmider, E. Segre, M. Rappaport, V. Umansky, Y. Levinson, and I. Bar-Joseph, Phys. Rev. Lett. 101, 257402 (2008).