368 citations · 686 across the 8 of their papers we have counts for
8 papers
Enhancing non-classical correlations for light scattered by an ensemble of cold two-level atoms
Lucas S. Marinho, Michelle O. Araújo, Wellington Martins +1
We report the enhancement of quantum correlations for biphotons generated via spontaneous four-wave mixing in an ensemble of cold two-level atoms. This enhancement is based on the…
Cooperative atomic emission from a line of atoms interacting with a resonant plane surface
Michelle O. Araujo, Joao Carlos de Aquino Carvalho, Philippe W. Courteille +1
Cooperative effects such as super- and subradiance can be observed in the fluorescence emitted by a system of N atoms in vacuum, after interaction with a laser beam. In the vicinit…
Observation of nonclassical correlations in biphotons generated from an ensemble of pure two-level atoms
Michelle O. Araújo, Lucas S. Marinho, Daniel Felinto
We report the experimental verification of nonclassical correlations for a four-wave-mixing process in an ensemble of cold two-level atoms, confirming theoretical predictions by Du…
Lévy flights of photons with infinite mean free path
Michelle O. Araújo, Thierry Passerat de Silans, Robin Kaiser
Multiple scattering of light by resonant vapor is characterized by Lévy-type superdiffusion with a single-step size distribution . We investigate Lévy flight…
Robustness of Dicke subradiance against thermal decoherence
P. Weiss, A. Cipris, M. O. Araújo +2
Subradiance is the cooperative inhibition of the radiation by several emitters coupled to the same electromagnetic modes. It was predicted by Dicke in 1954 and only recently observ…
Decay dynamics in the coupled-dipole model
M Araújo, William Guerin, Robin Kaiser
Cooperative scattering in cold atoms has gained renewed interest, in particular in the context of single-photon superradiance, with the recent experimental observation of super-and…
Superradiance in a Large and Dilute Cloud of Cold Atoms in the Linear-Optics Regime
Michelle O. Araújo, Ivor Kresic, Robin Kaiser +1
Superradiance has been extensively studied in the 1970s and 1980s in the regime of superfluores-cence, where a large number of atoms are initially excited. Cooperative scattering i…
Subradiance in a Large Cloud of Cold Atoms
William Guerin, Michelle O. Araújo, Robin Kaiser
Since Dicke's seminal paper on coherence in spontaneous radiation by atomic ensembles, superradiance has been extensively studied. Subradiance, on the contrary, has remained elusiv…