title: Probing the quantum state of a 1D Bose gas using off-resonant light scattering.
abstract: We present a theoretical treatment of coherent light scattering from an interacting 1D Bose gas at finite temperatures. We show how this can provide a nondestructive measurement of the atomic system states. The equilibrium states are determined by the temperature and interaction strength, and are characterized by the spatial density-density correlation function. We show how this correlation function is encoded in the angular distribution of the fluctuations of the scattered light intensity, thus providing a sensitive, quantitative probe of the density-density correlation function and therefore the quantum state of the gas.
authors.affiliation: Jack Dodd Centre for Quantum Technology, Department of Physics, University of Otago, Dunedin, New Zealand.
authors.forename: A G
authors.initials: AG
authors.lastname: Sykes
authors.forename: R J
authors.initials: RJ
authors.lastname: Ballagh