title: Spontaneous Bose coherence of excitons and polaritons.
abstract: In the past decade, there has been an increasing number of experiments on spontaneous Bose coherence of excitons and polaritons. Four major areas of research are reviewed here: three-dimensional excitons in the bulk semiconductor Cu2O, two-dimensional excitons in coupled quantum wells, Coulomb drag experiments in coupled two-dimensional electron gases, and polaritons in semiconductor microcavities. The unifying theory of all these experiments is the effect of spontaneous symmetry breaking in the Bose-Einstein condensation phase transition.
authors.affiliation: Department of Physics, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260, USA.
authors.forename: David
authors.initials: D
authors.lastname: Snoke