Quantum tomography of mesoscopic superpositions of radiation states
Giacomo Mauro D’Ariano, Chiara Macchiavello, Lorenzo Maccone · Physical Review A · 1999
We show the feasibility of a tomographic reconstruction of ``Schr\"odinger-cat states'' generated according to the scheme proposed by S. Song, C.M. Caves, and B. Yurke [Phys. Rev. A $41,$ 5261 (1990)]. We present a technique that tolerates realistic values for quantum efficiency at photodetectors. The measurement can be achieved by a standard experimental setup.