A complementary thread of our research involves quantum coherent phenomena in bulk and mesoscopic systems, especially the destruction of phase coherence by disorder and inelastic scattering. Much of our work is motivated by experiment, often in direct collaboration with experimental groups.
Cooper has made significant contributions to the understanding of rotating Bose condensates and non-abelian phases. Littlewood and co-workers have carried out a wide range of work including fundamental contribution to the understanding of manganites and extensive work on polaritons and excitons in semiconductors, including Bose-Einstein condensation of excitons. Simons continues to develop the application of path integral techniques to real world problems involving disorder and correlations, most recently in ultracold atoms, but has also developed new activities in biology.