Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 48: Poster
HK 48.63: Poster
Mittwoch, 25. März 2015, 17:00–19:00, C/Foyer
Experimental considerations for quantum-entanglement studies with relativistic fermions — •Steffen Schlemme1, Marius Peck1, Kazimierz Bodek2, Pawel Caban3, Jacek Ciborowski4, Michal Dragowski4, Joachim Enders1, Adam Kozela5, Jakub Rembielinski3, Dagmara Rozpedzik2, Marta Wlodarczyk4, and Jacek Zejma2 — 1TU Darmstadt, Darmstadt, Germany — 2Jagiellonian University, Cracow, Poland — 3University of Lodz, Lodz, Poland — 4Warsaw University, Warsaw, Poland — 5Institute of Nuclear Physics PAS, Cracow, Poland
The QUEST (Quantum entanglement of Ultra-relativistic Electrons in Singlet and Triplet states) project is aimed at the determination of the electron spin correlation function at relativistic energies. Electron pairs are created through Moeller scattering, and polarization observables are planned to be measured in Mott scattering. The predicted spin correlation function is energy dependent with values of several per cent at energies of 10 - 20 MeV.
The results of a first test experiment at the S-DALINAC were not sensitive enough to detect entangled and Mott-scattered electron pairs at the expected energies. Further steps are either to improve the former setup or design a new polarimeter for lower energies to improve statistics due to the higher scattering cross sections. This contribution presents general considerations, test results, and an outlook.
Supported in part by DFG (SFB 634), DAAD, the Polish Ministry of Science and Higher Education, and Polish Natl. Science Centre grants UMO-2012/06/M/ST2/00430 and DEC-2013/08/S/ST2/00551.