Super Dense Coding on Integrated Photonic Chips

Integrated photonic chip allows us to implement several quantum processing protocols. In particular, quantum superdense coding can provide a solution to enhance the channel capacity compared with classical coding, which plays a vital role in quantum networks. Recently, we have demonstrated a 16-mode quantum process photonic chip and experimentally validated a degenerate eight-dimensional quDit entangled state with a fidelity of 97%