Reconstructing the density operator by using generalized field quadratures
G M D'Ariano, S Mancini, V I Man'ko, P Tombesi · Quantum and Semiclassical Optics Journal of the European Optical Society Part B · 1996
The Wigner function for one- and two-mode quantum systems is explicitly expressed in terms of the marginal distribution for the generic linearly transformed quadratures. Then, the density operator of those systems is also written in terms of the marginal distribution of these quadratures. Some applications and a reduction to the usual optical homodyne tomography are considered.