title: Long-range nature of feshbach molecules in bose-einstein condensates.
abstract: We discuss the long-range nature of the molecules produced in recent experiments on molecular Bose-Einstein condensation. The properties of these molecules depend on the full two-body Hamiltonian and not just on the states of the system in the absence of interchannel couplings. The very long-range nature of the state is crucial to the efficiency of production in the experiments. Our many-body treatment of the gas accounts for the full binary physics and describes properly how these molecular condensates can be directly probed.
authors.affiliation: Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom.
authors.forename: T
authors.initials: T
authors.lastname: Köhler
authors.forename: T
authors.initials: T
authors.lastname: Gasenzer
authors.forename: P S
authors.initials: PS
authors.lastname: Julienne
authors.forename: K
authors.initials: K
authors.lastname: Burnett