Production of entangled x rays through nonlinear double Compton scattering

• URL: http://arxiv.org/abs/2311.17807v3
• Date: Thu, 31 Oct 2024 14:14:59 GMT
• Title: Production of entangled x rays through nonlinear double Compton scattering
• Authors: T. D. C. de Vos, J. J. Postema, B. H. Schaap, A. Di Piazza, O. J. Luiten,
• Abstract summary: An accessible tabletop source for the production of entangled x rays is crucial for high-energy quantum optics. We present a detailed analysis of the entanglement and polarization of the two photons emitted by an electron in an intense laser wave. We propose an experiment to produce and isolate pairs of entangled x rays, through spectral filtering.
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• Abstract: An accessible tabletop source for the production of entangled x rays is crucial for the field of high-energy quantum optics. Here, we present a detailed analysis of the entanglement and polarization of the two photons emitted by an electron in an intense laser wave (nonlinear double-Compton scattering), by working within the framework of strong-field QED. By identifying contributions to the emission probability stemming from the electron being either on-shell or off-shell between the two-photon emissions, we show that the entangled photons are generated via the off-shell contribution for moderate beam energies, which are realizable on a tabletop setup. We propose an experiment to produce and isolate pairs of entangled x rays, through spectral filtering.

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