Characterization of bipartite states using a single homodyne detector
arXiv:quant-ph/0509180 · doi:10.1088/1464-4266/7/12/044
Abstract
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.
7 pages, 1 figure