Darmstadt 2008 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 25: Posters: Precision spectroscopy of atoms and ions
A 25.3: Poster
Donnerstag, 13. März 2008, 16:30–18:30, Poster C3
Relativistic photon polarization studies in the two-photon decay of hydrogenlike systems — •Thomas Radtke1, Stephan Fritzsche2, and Andrey Surzhykov3 — 1Institut für Physik, Universität Kassel, D-34132 Kassel, Germany — 2Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany — 3Gesellschaft für Schwerionenforschung (GSI), 64291 Darmstadt, Germany
The two-photon decay of metastable hydrogen and hydrogen-like systems has attracted renewed interest from the early days of quantum mechanics. Since then, many theoretical and experimental studies have been carried out to investigate the total decay rates and angular correlation functions of the emitted photons [1].
In this contribution, we analyze the (linear) polarization correlation of the two simultaneously emitted photons in the 2s1/2 → 1s1/2 and 3d5/2 → 1s1/2 decay of hydrogenlike atoms and ions. Our description is based on Dirac’s equation and, hence, enables us to explore the relativistic and multipole effects upon the photon polarization. For the decay of hydrogen and hydrogen-like U91+ ions, results are shown for the angular dependence of the polarization correlation and are compared to the nonrelativistic dipole approximation.
[1] A. Surzhykov, P. Koval, S. Fritzsche, Phys. Rev. A 71, 022509 (2005)