In this letter we present a scheme for the implementation of frequency up- and down-conversion operations in two-mode cavity quantum electrodynamics (QED). This protocol for engineering bilinear two-mode interactions could enlarge perspectives for quantum information manipulation and also be employed for fundamental tests of quantum theory in cavity QED. As an application we show how to generate a two-mode squeezed state in cavity QED (the original entangled state of Einstein-Podolsky-Rosen).
@article{arxiv.quant-ph/0306126,
title = {Frequency up- and down-conversions in two-mode cavity quantum electrodynamics},
author = {R. M. Serra and C. J. Villas-Boas and N. G. de Almeida and M. H. Y. Moussa},
journal= {arXiv preprint arXiv:quant-ph/0306126},
year = {2007}
}