269 citations · 409 across the 3 of their papers we have counts for
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Towards higher precision and operational use of optical homodyne tomograms
M. Bellini, A. S. Coelho, S. N. Filippov +2
We present the results of an operational use of experimentally measured optical tomograms to determine state characteristics (purity) avoiding any reconstruction of quasiprobabilit…
Robustness of bipartite Gaussian entangled beams propagating in lossy channels
F. A. S. Barbosa, A. S. Coelho, A. J. de Faria +4
Subtle quantum properties offer exciting new prospects in optical communications. Quantum entanglement enables the secure exchange of cryptographic keys and the distribution of qua…
Experimental demonstration of three-color entanglement
A. S. Coelho, F. A. S. Barbosa, K. N. Cassemiro +3
Entanglement is the essential quantum resource for a potential speed-up of information processing, as well as for sophisticated quantum communication. Quantum information networks…