Mainz 2014 – scientific programme
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T: Fachverband Teilchenphysik
T 68: Poster
T 68.3: Poster
Tuesday, March 25, 2014, 16:45–19:00, ReWi EG
First tests for an experiment on quantum entanglement of ultra-relativistic electrons at the S-DALINAC — •Steffen Schlemme1, Kazimierz Bodek2, Pawel Caban3, Jacek Ciborowski4, Joachim Enders1, Adam Kozela5, Marcin Perkowski2, Michal Rawlik2, Jakub Rembielinski3, Dagmara Rozpedzik2, Damian Trybek2, Marta Wlodarczyk4, and Jacek Zejma2 — 1TU Darmstadt — 2Jagiellonian University Krakow — 3University of Lodz — 4University of Warsaw — 5Polish Academy of Science, Krakow
Quantum entanglement is a current topic of quantum information theory, and experimental studies for massless photons as well as massive particles have been carried out, showing the limits of local realism. No data exist for relativistic fermions, and theoretical predictions suggest that spin correlations are ambiguous and difficult to interpret in this case. Therefore we aim at measuring an electron-pair spin-correlation function at the superconducting Darmstadt electron linear accelerator S-DALINAC using the now available polarized beam. Entangled relativistic electron pairs will be formed in Moeller scattering at 15 MeV beam energy, and polarization will be measured in backward-angle Mott scattering [1]. Results of a first test experiment on background conditions and event rates will be presented.
Supported by DAAD, by the Polish Ministry of Science and Higher Education, the Polish Science Centre (DEC-2012/06/M/ST2/00430) and by Deutsche Forschungsgemeinschaft (SFB 634).
[1] K. Bodek et al., AIP Conference Proceedings 1563, 208 (2013).