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arXiv · 1907.04045

Quantum enhanced X-ray detection

S. Sofer·E. Strizhevsky·A. Schori·K. Tamasaku·S. Shwartz
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Abstract

We present the first experimental demonstration of quantum-enhanced detection at x-ray wavelengths. We show that x-ray pairs that are generated by spontaneous down-conversion can be used for the generation of heralded x-ray photons and measure directly the sub-Poissonian statistics of the single photons by using photon number resolving detectors. We utilize the properties of the strong time-energy correlations of the down converted photons to demonstrate the ability to improve the visibility and the signal-to-noise ratio of an image with a small number of photons in an environment with a noise level that is higher than the signal by many orders of magnitude. In our work we demonstrate a new protocol for the measurement of quantum effects with x-rays using advantages such as background free measurements that the x-ray regime offers for experiments aiming at testing fundamental concepts in quantum optics.

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S. Sofer, E. Strizhevsky, A. Schori, K. Tamasaku, S. Shwartz. 2019-07-09. Quantum enhanced X-ray detection. https://doi.org/10.1103/physrevx.9.031033

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