title: Optically induced polarons in bose-einstein condensates: monitoring composite quasiparticle decay.
abstract: Nonresonant light scattering off atomic Bose-Einstein condensates is predicted to give rise to hitherto unexplored composite quasiparticles: unstable polarons, i.e., local "impurities" dressed by virtual phonons. Optical monitoring of their spontaneous decay can display either Zeno or anti-Zeno deviations from the golden rule, and thereby probe the temporal correlations of elementary excitations in the condensates.
authors.affiliation: Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel.
authors.forename: I E
authors.initials: IE
authors.lastname: Mazets
authors.forename: G
authors.initials: G
authors.lastname: Kurizki
authors.forename: N
authors.initials: N
authors.lastname: Katz
authors.forename: N
authors.initials: N
authors.lastname: Davidson