Quantum tomography of mesoscopic superpositions of radiation states

G. M. D'Ariano, C. Macchiavello, L. Maccone
1999 Physical Review A. Atomic, Molecular, and Optical Physics  
We show the feasibility of a tomographic reconstruction of Schrödinger 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.
doi:10.1103/physreva.59.1816 fatcat:5sr43xyjcrgrlcsimtzm4jhsta