The polarization properties of macroscopic Bell states are characterized using three-dimensional quantum polarization tomography. This method utilizes three-dimensional inverse Radon transform to reconstruct the polarization quasiprobability distribution function of a state from the probability distributions measured for various Stokes observables. The reconstructed 3D distributions obtained for the macroscopic Bell states are compared with those obtained for a coherent state with the same mean photon number. The results demonstrate squeezing in one or more Stokes observables.
@article{arxiv.1112.4282,
title = {Three-dimensional Quantum Polarization Tomography of Macroscopic Bell States},
author = {Bhaskar Kanseri and Timur Iskhakov and Ivan Agafonov and Maria Chekhova and Gerd Leuchs},
journal= {arXiv preprint arXiv:1112.4282},
year = {2015}
}