Amplification of polarization correlations in Compton scattering of hard X-ray Bell states

TL;DR

This paper proposes an experiment to verify the theoretical cross section of Compton scattering of entangled Bell photons in the hard X-ray regime, predicting a significant amplification of polarization correlations.

Contribution

It introduces a new experimental approach and theoretical framework for studying Compton scattering of hard X-ray Bell states, with predictions of enhanced polarization correlation signals.

Findings

Predicted azimuthal ratio amplification by a factor of 600

Application of matrix method to parameterize scattering theory

Feasibility of testing Bell states in hard X-ray regime

Abstract

The theoretical cross section for Compton scattering of maximally entangled Bell photons has yet to be rigorously confirmed by experiments. Test cases of Bell states for use in Compton scattering experiments can now be expanded given reports of creating all 4 Bell states in the hard X-ray regime by the process of spontaneous parametric down-conversion. We outline an experiment and apply a matrix method to parameterize Compton scattering theory using the phase matching angles. When the azimuths of two hypothetical photon counters are recorded at angles of 0 degrees and 90 degrees, and the ratio of their counting rates determined, azimuthal ratios are expected to be 600 times larger compared to 511 keV Bell photons.