Proposal for a new scheme for producing a two-photon, high dimensional hyperentangled state

Abstract

We propose an experimentally feasible scheme for generating a two $2\times 4\times 4$ 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 multidimensions. 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.

15 pages, 5 figures, to appear in J.Mod Optics

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Cited by in corpus (2)

• Polarization-path-frequency entanglement using interferometry and frequency shifters
• Synchronous concentration and purification schemes of arbitrary unknown hyperentangled mixed states