【学术报告】Igor Chestnov：Macroscopic Condensates of Excitons Polaritons
This lecture will review the recent progress in investigating a spontaneous build-up of macroscopic coherence in non-resonantly pumped semiconductor microcavities. Because of the strong interaction between excitons and cavity mode, the hybrid particles called polaritons appear. Inheriting high mobility and strong interactions from their constituents, these particles demonstrate superfluid behavior accompanied by spontaneous nucleation of vortices. I will describe experimental approaches for creation and manipulation of such peculiar structures including spatial confinement techniques. In addition, I will present a theoretical framework capable of explaining a number of recent experimental findings.
