Two-mode squeezed and entangled states of a hybrid system of an atomic ensemble and an optical field via an atom–cavity reservoir
Qing Yang Xu, Xiangming Hu · Journal of Physics B Atomic Molecular and Optical Physics · 2013
We show that it is possible to use an atom–cavity reservoir to prepare the two-mode squeezed and entangled states of a hybrid system of an atomic ensemble and an optical field, which do not directly interact with each other. The essential mechanism is based on the combined effect of a two-mode squeezing interaction and a beam–splitter interaction between the system and the reservoir. The reservoir mechanism is important for quantum networking in that it allows an interface between a localized matter-based memory and an optical carrier of quantum information without direct interaction. (Some figures may appear in colour only in the online journal)