Realization and Application of the Two-photon High Dimensional Hyperentangled State

Details Realization and Application of the Two-photon High Dimensional Hyperentangled State Realization and Application of the Two-photon High Dimensional Hyperentangled State

2012-04-02

arxiv.org/abs/1204.0322v2

Physics

Quantum Physics

15 pages, 5 figures

Scientific paper

We propose an experimentally feasible scheme for generating a two $2\times4\times4$ dimensional photons hyperentangled state, entangled in polarization, frequency and spatial mode. This scheme is mainly based on a parametric down-conversion source and cross-Kerr nonlinearities, which avoids the complicated uncertain post-selection. Our method can be easily expanded to the production of hyperentangled states with more photons in multi-dimension. Hence the expectation for vast quantities of information in quantum information processing will possibly come true. Finally, we put forward a realizable quantum key distribution (QKD) protocol based on the high dimensional hyperentangled state.

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