Nuclear excitons and control of gamma-ray emission

by Dr Adriana Palffy (Max-Planck-Institut fur Kernphysik)

Wednesday 23 Mar 2011, 14:30 → 15:10 Europe/Zurich

26-1-022 (CERN)

Resonant scattering of light off nuclei in a crystal may lead under certain conditions to the formation of a nuclear exciton. The coherent light reemission is then determined by cooperative effects and is superradiant in nature. It has been shown that fast rotation of the magnetic hyperfine field direction can control and even completely suppress the coherent decay channel via destructive interference effects. Applications of this technique to achieve x-ray single photon entanglement or control the branching ratio of specific nuclear transitions are investigated. In particular, prospects for the population or depletion of metastable nuclear states are discussed.

Slides 20110323_palffy.pdf