Optimal real state quantum cloning machine in cavity quantum electrodynamics
Wei Xiong, Ye Liu · Journal of the Optical Society of America B · 2011
We propose a scheme to realize a special quantum cloning machine (QCM) in cavity quantum electrodynamics (QED). The QCM can copy the information from one atom to another two distant atoms trapped in cavity QED with the help of a single-photon pulse. By choosing different parameters, we can perform an optimal symmetry 1→2 real state QCM and an optimal symmetry 1→3 economical real state QCM.