Probing the quantum state of a 1D Bose gas using off-resonant light scattering
arXiv:1109.3727 · doi:10.1103/PhysRevLett.107.270403
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.
6 pages, 4 figures
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