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MPINP:
Research group A. Pálffy – Division C. H. Keitel
Abstract:
An experimentally feasible scheme based on fast magnetic field rotations to generate nuclear polariton
entanglement in a 57FeBO3 sample is investigated theoretically. Using a nuclear forward
scattering setup with hard x-ray synchrotron radiation, a normal incidence x-ray mirror and two
fast rotations of the hyperfine magnetic field in the sample, a nuclear polariton with two counterpropagating
branches can produced. These branches are entangled by a single photon. The first
magnetic field rotation suppresses nuclear decay, providing a sub-ångström-wavelength standing
wave nuclear excitation pattern that could be used to dynamically probe the sample’s atomic structure.
By releasing the photon with a second rotation, one additionally obtains robust single-photon
entanglement of two simultaneously emitted, spatially separated field modes.
