Relative tomography of an unknown quantum state
Dmitri S. Mogilevtsev, Jaroslav Řeháček, Z. Hradil · Physical Review A · 2009
We propose a tomography scheme capable of reconstructing the quantum state of an unknown mode of light. The complex mode structure of the investigated field is expressed by a single number---the mismatch between the probe and signal. This parameter is estimated as a part of the quantum tomography protocol. This opens up ways for reconstructions utilizing interference between independent sources.