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DOE OSTI · 1764308

Manipulating Core Excitations in Molecules by X-Ray Cavities

Gu, Bing·Nenov, Artur·Segatta, Francesco·Garavelli, Marco·Mukamel, Shaul
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Abstract

Core excitations on different atoms are highly localized and therefore decoupled. By placing molecules in an x-ray cavity the core transitions become coupled via the exchange of cavity photons and form delocalized hybrid light-matter excitations known as core polaritons. Here, we demonstrate these effects for the two inequivalent carbon atoms in 1,1-difluoroethylene. Polariton signatures in the x-ray absorption, two-photon absorption, and multidimensional four-wave mixing signals are predicted.

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74 ATOMIC AND MOLECULAR PHYSICSElectronic excitation & ionizationMoleculesStrong electromagnetic field effectsX-ray absorption near-edge spectroscopy

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Gu, Bing, Nenov, Artur, Segatta, Francesco, Garavelli, Marco, Mukamel, Shaul. 2021-02-04. Manipulating Core Excitations in Molecules by X-Ray Cavities. https://doi.org/10.1103/physrevlett.126.053201

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