Interference of photons and polarization-based quantum state tomography through emulated atmospheric turbulence

Keith A. Wyman; Noah Everett; Anil Patnaik

doi:10.1117/12.3032297

2 August 2024 Interference of photons and polarization-based quantum state tomography through emulated atmospheric turbulence

Keith A. Wyman, Noah Everett, Anil Patnaik

Author Affiliations +

Proceedings Volume PC13106, Photonics for Quantum 2024; PC131060H (2024) https://doi.org/10.1117/12.3032297
Event: Photonics for Quantum, 2024, Waterloo, Ontario, Canada

Abstract

To study long-distance free-space quantum communication links, the Air Force Institute of Technology (AFIT) simulated, designed, built, and characterized an atmospheric turbulence simulator (ATS) with the Fried parameter ranging from 0≤ D⁄r_0 <18.2. The ATS was integrated with a non-turbulent path to conduct quantum interferometric experiments such as the heralded single photon g^2 (τ), and the two-photon Hong-Ou-Mandel (HOM) measurement. We observed that g^2 (0) increased to 1 and that the visibility of the HOM dip significantly decreased in moderate turbulence . Additionally, we tested the reconstruction of polarized-entangled photonic states in various turbulence regimes, and as expected, turbulence weakly affected the reconstruction of the polarization states. This presentation details the experimental setup, results, and analysis of those experiments.

Conference Presentation

Citation Download Citation

Keith A. Wyman, Noah Everett, and Anil Patnaik "Interference of photons and polarization-based quantum state tomography through emulated atmospheric turbulence", Proc. SPIE PC13106, Photonics for Quantum 2024, PC131060H (2 August 2024); https://doi.org/10.1117/12.3032297

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