Taking the quantum eraser to the abstract world

I. Nape; B. Ndagano; A. Forbes

doi:10.1117/12.2274173

30 August 2017 Taking the quantum eraser to the abstract world

I. Nape, B. Ndagano, A. Forbes

Proceedings Volume 10409, Quantum Communications and Quantum Imaging XV; 1040906 (2017) https://doi.org/10.1117/12.2274173
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

Youngs double slit experiment is one of the most celebrated achievements in quantum and classical optics; it provides experimental proof of the wave-particle duality of light. When the paths of the double slit are marked with orthogonal polarizations, the path information is revealed and no interference pattern is observed. However, the path information can be erased with a complimentary analysis of the polarization. Here we use hybrid entanglement between photons carrying orbital angular momentum and polarization to show that, just as in Young's experiment, the paths (OAM) marked with polarization do not lead to interference. However, when introducing the eraser (polarizer) which projects the polarization of one of the entangled photons onto a complementary polarization basis, the OAM (paths) are allowed to interfere, leading to the formation of azimuthal fringes whose frequency is proportional to the OAM content carried by the photon.

Conference Presentation

Citation Download Citation

I. Nape, B. Ndagano, and A. Forbes "Taking the quantum eraser to the abstract world", Proc. SPIE 10409, Quantum Communications and Quantum Imaging XV, 1040906 (30 August 2017); https://doi.org/10.1117/12.2274173

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