Photon–phonon entanglement in the acousto-optic interaction of vector beams

•For the first time it has been shown that a photon and a phonon can be entanglement in the course of AO diffraction. We demonstrate that acousto-optic diffraction under certain conditions can be accompanied by inter-system photon–phonon entanglement. A photon diffracted during Stokes acousto-optic...

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Bibliographic Details
Published in:Results in optics 2023-02, Vol.10, p.100350, Article 100350
Main Authors: Kostyrko, Myroslav, Vasylkiv, Yuriy, Skab, Ihor, Vlokh, Rostyslav
Format: Article
Language:English
Subjects:
Acousto-optic diffraction
Quantum entanglement
Vector beams
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Summary:•For the first time it has been shown that a photon and a phonon can be entanglement in the course of AO diffraction. We demonstrate that acousto-optic diffraction under certain conditions can be accompanied by inter-system photon–phonon entanglement. A photon diffracted during Stokes acousto-optic interaction of acoustic and optical vector beams represents a vector beam that manifests the intra-system entanglement between its states characterized by the different signs of circular polarization and orbital angular momentum. At the same time, a diffracted photon and an acoustic phonon emitted in the process of acousto-optic interaction demonstrate the inter-system entanglement between their circularly polarized vortex states.
ISSN:2666-9501
2666-9501
DOI:10.1016/j.rio.2023.100350