Efficient Interaction of Heralded X-Ray Photons with a Beam Splitter

E. Strizhevsky, D. Borodin, A. Schori, S. Francoual, R. Röhlsberger, S. Shwartz

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We report the experimental demonstration of efficient interaction of multi-kilo-electron-volt heralded x-ray photons with a beam splitter. The measured heralded photon rate at the outputs of the beam splitter is about 0.01 counts/s which is comparable to the rate in the absence of the beam splitter. We use this beam splitter together with photon number and photon energy resolving detectors to show directly that when a single x-ray photon interacts with a beam splitter it can only be detected at either of the ports of the beam splitter but not at both simultaneously, leading to a strong anticorrelation between the detection events at the two output ports. Our experiment demonstrates the major advantage of x rays for quantum optics - the possibility to observe experimental results with high fidelity and with negligible background.

Original languageEnglish
Article number013603
JournalPhysical Review Letters
Issue number1
StatePublished - 2 Jul 2021

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© 2021 American Physical Society.


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