Entanglement and Superdense Coding with Linear Optics

Jacob Dunningham

Jiangmei Tang, Qingsheng Zeng, Naixing Feng +1 more

Li Lü

Qing Lin, Jian Li, Guang Can Guo

In this paper, we propose an experimental scheme of probabilistic superdense coding assisted with linear optical manipulations, photon entanglement produced from parametric down-conversion and postselection from coincidence measurements. The proposal is feasible by current experimental technology.

Lin Qing

A scheme of the generation of entangled qutrits is presented, and then is generalized to entangled ququads and entangled qudits. With the entangled qutrits, an experimental scheme of probability superdense coding with only linear optical elements is proposed. It is shown that this scheme will be suitable for the entangled ququads, even for the entangled qudits if some nonlinearity is used. This scheme is feasible in the laboratory with the current experimental technology.

Hee Su Park, Heonoh Kim, Sang Min Lee +2 more