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Coherent backscattering of entangled photon pairs – Prof. Yaron Bromberg (The Hebrew University of Jerusalem)
July 24, 2023 @ 2:00 pm - 3:00 pm
Title: Coherent backscattering of entangled photon pairs
Speaker: Yaron Bromberg, The Hebrew University of Jerusalem
Date and time: July 24, 2023, 2 pm
Location: GB119
Abstract: When a coherent laser beam illuminates a scattering sample, the backscattered intensity shows a pronounced peak, a phenomenon known as coherent backscattering, or weak localization of light. The observation of coherent backscattering marked a milestone in studying light in random media, as it was the first observation of a robust interference effect that survives disorder averaging. Intending to identify quantum features of light that are robust to disorder averaging, we are studying coherent backscattering of entangled photons. In the talk, I will give a brief introduction to coherent backscattering and present our recent experimental observation of coherent backscattering of spatially entangled photons [1]. I will show that backscattered photon pairs exhibit enhanced spatial correlations that can increase the sensitivity of measurements of the sample’s transport mean free path, compared to measurements using classical light.
[1] Safadi, M., et al. Coherent Backscattering of Entangled Photon Pairs. Nat. Phys. 19, 562-568 (2023)
Short Bio: Yaron Bromberg is an associate professor at the Racah Institute of Physics at The Hebrew University of Jerusalem. He joined the Hebrew University in 2015 after completing a postdoctoral fellowship at the lab of Prof. Hui Cao at Yale University and obtaining his Ph.D. in Physics at the lab of Prof. Yaron Silberberg at the Weizmann Institute. His research focuses on the physics and applications of quantum and classical light in complex media.
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