High-Dimensional Entanglement-Enabled Holography

As an important imaging technique, holography has been realized with different physical dimensions of light, including polarization, wavelength, and time. Recently, quantum holography has been demonstrated by utilizing polarization entangled state with the advantages of high robustness and enhanced spatial resolution, comparing with classical holography. However, the polarization is only a two-dimensional degree of freedom, which greatly limits the capacity of quantum holography. Here, we propose a method to realize high-dimensional quantum holography by using high-dimensional orbital angular momentum (OAM) entanglement. A high-capacity OAM-encoded quantum holographic system can be obtained by multiplexing a wide range of OAM-dependent holographic images. Proof-of-principle experiments with four- and six-dimensional OAM entangled states have been implemented and verify the feasibility of our idea. Our experimental results also demonstrate that the high-dimensional quantum holography shows a high robustness to classical noise. What is more, the level of security of the holographic imaging encryption system can be greatly improved in our high-dimensional quantum holography.

Automated summary

As an important imaging technique, holography has been realized with different physical dimensions of light, including polarization, wavelength, and time. Recently, quantum holography has been demonstrated with polarization entangled state, showing advantages of high robustness and enhanced spatial resolution. However, the capacity of quantum holography is limited due to the two-dimensional degree of freedom of polarization. In this study, we propose a method to achieve high-dimensional quantum holography using high-dimensional orbital angular momentum (OAM) entanglement. Proof-of-principle experiments with four- and six-dimensional OAM entangled states validate the feasibility of our idea and demonstrate high robustness to classical noise. Furthermore,a high-dimensional quantum holography can greatly improve the security level of holographic imaging encryption system.