Experimental demonstration of bipartite-multi dimensional quantum systems
Multi-dimensional quantum systems also called “qudits”, which provide more information in communication but it is not easy to demonstrate especially in binary polarized photon. Previously, it generated by the orbital angular momentum, or multi-partite entangled photon pair, which systems can not provide high quality in high dimension and not easy to generate. Here, we proposed a new concept to realize the bipartite multi-dimensional quantum systems with bipartite entangled photon pair through spontaneous parametric down-conversion process and violate the Bell’s inequalities of d=16. We expect this concept can widely create multi-dimensional entanglement using any bipartite entangled system.