We outline the potential gains of quantum correlated imaging and compare it to classical correlated imaging. As shown earlier by A. Gatti, E. Bambilla, M. Bache, and L. A. Lugiato, ArXive:quant-ph/0405056, classical correlated imaging can mimic most features of quantum imaging but at lower signal-to-noise ratio for a given mean photon number (or intensity). In this paper we specifically investigate coherent correlated imaging, and show that while it is possible to perform such imaging using a thermal source, a coherent light-source provides a less demanding experimental setup. We also compare the performance to what can be obtained by using non-classical light.
@article{arxiv.quant-ph/0407127,
title = {Quantum and classical correlated imaging},
author = {J. Bogdanski and G. Bjork and A. Karlsson},
journal= {arXiv preprint arXiv:quant-ph/0407127},
year = {2007}
}