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Free keywords:
Quantum Physics, quant-ph, Condensed Matter, cond-mat.other, Physics, Atomic Physics, physics.atom-ph
MPINP:
Research group A. Pálffy – Division C. H. Keitel
Abstract:
A setup for generating the special superposition of a simultaneously forward-
and backward-propagating collective excitation in a nuclear sample is studied.
We show that by actively manipulating the scattering channels of single x-ray
quanta with the help of a normal incidence x-ray mirror, a nuclear polariton
which propagates in two opposite directions can be generated. The two
counterpropagating polariton branches are entangled by a single x-ray photon.
The quantum nature of the nuclear excitation entanglement gives rise to a
subangstrom-wavelength standing wave excitation pattern that can be used as a
flexible tool to probe matter dynamically on the subatomic scale.
