16 citations · 56 across the 6 of their papers we have counts for
4 papers · 1 filter
Comparison of confidence regions for quantum state tomography
Jessica O. de Almeida, Matthias Kleinmann, Gael Sentís
The quantum state associated to an unknown experimental preparation procedure can be determined by performing quantum state tomography. If the statistical uncertainty in the data d…
Superresolving collective quantum measurements
J. O. de Almeida, M. Lewenstein, M. Skotiniotis
We demonstrate a method for super-resolving signals encoded as finite mixtures of bosonic modes using collective measurements that exploit permutation symmetry. Specifically, we us…
Characterization of a spatial light modulator as a polarization quantum channel
G. Barreto Lemos, J. O. de Almeida, S. P. Walborn +2
Spatial light modulators are versatile devices employed in a vast range of applications to modify the transverse phase or amplitude profile of an incident light beam. Most experime…
Ancilla-assisted measurement of photonic spatial correlations and entanglement
M. Hor-Meyll, J. O. de Almeida, G. B. Lemos +2
We report an experiment in which the moments of spatial coordinates of down-converted photons are measured directly, without having to reconstruct any marginal probability distribu…