Characterization of bipartite states using a single homodyne detector
Virginia D’Auria, A. Porzio, Salvatore Solimeno, Stefano Olivares, Matteo G A Paris · Journal of Optics B Quantum and Semiclassical Optics · 2005
We suggest a scheme to reconstruct the covariance matrix of a two-mode state using a single homodyne detector plus a polarizing beam splitter and a polarization rotator. It can be used to fully characterize bipartite Gaussian states and to extract relevant informations on generic states.