par Fiurasek, Jaromir ;Cerf, Nicolas
Référence Physical Review Letters, 93, page (063601)
Publication Publié, 2004
Article révisé par les pairs
Résumé : We propose a scheme for measuring the squeezing, purity, and entanglement of Gaussian states of light that does not require homodyne detection. The suggested setup needs only beam splitters and single-photon detectors. Two-mode entanglement can be detected from coincidences between photodetectors placed on the two beams.