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Mapping out the quasi-condensate transition through the 1D-3D dimensional crossover
quasi-condensate transition 1D-3D dimensional crossover
2010/11/23
By measuring the density fluctuations in a highly elongated weakly interacting Bose gas, we observe and quantify the transition from the ideal gas to a quasi-condensate regime throughout the dimension...
Shear bands in a continuum model of foams: how a 3D homogeneous material may seem inhomogeneous in 2D
Shear bands continuum model of foams
2010/11/17
We describe possible conditions for stationnary inhomogeneous flow behaviour (sheared and
blocked bands) in a continuous mechanical model of a soft visco-elasto-plastic material such as
a foam or a ...
Doping and temperature dependence of Mn 3d states in A-site ordered manganites
Doping temperature dependence A-site ordered manganites
2010/11/19
We present a systematic study of the electronic structure in A-site ordered manganites as function of doping and temperature. The energy dependencies observed with soft x-ray resonant diffraction (SXR...
Experimental evidence of ageing and slow restoration of the weak-contact configuration in tilted 3D granular packings
Granular solids Nonlinear acoustic probing Avalanches
2010/11/19
Granular packings slowly driven towards their instability threshold are studied using a digital imaging technique as well as a nonlinear acoustic method. The former method allows us to study grain rea...