197 citations · 484 across the 11 of their papers we have counts for
5 papers · 1 filter
Observation of coherent back-scattering and its dynamics in a transverse 2D photonic disorder : from weak to strong localization
Julien Armijo, Raphaël Allio
We report the first observation of coherent back-scattering (CBS) of light in a transverse photonic disorder. The CBS peak is recorded in the far-field, at a fixed propagation time…
Direct observation of quantum phonon fluctuations in a one dimensional Bose gas
Julien Armijo
We report the first direct observation of collective quantum fluctuations in a continuous field. Shot-to-shot atom number fluctuations in small sub-volumes of a weakly interacting…
Sub-Poissonian fluctuations in a 1D Bose gas: from the quantum quasi-condensate to the strongly interacting regime
Thibaut Jacqmin, Julien Armijo, Tarik Berrada +2
We report on local measurements of atom number fluctuations in slices of a single 1D Bose gas with repulsive interactions. For weakly interacting gases, the fluctuations are super-…
Mapping out the quasi-condensate transition through the 1D-3D dimensional crossover
Julien Armijo, Thibaut Jacqmin, Karen Kheruntsyan +1
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 thro…
Probing three-body correlations in a quantum gas using the measurement of the third moment of density fluctuations
Julien Armijo, Thibaut Jacqmin, Karen Kheruntsyan +1
We perform measurements of the third moment of atom number fluctuations in small slices of a very elongated weakly interacting degenerate Bose gas. We find a positive skewness of t…