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P. L. Potapov, J. Verbeeck, P. Schattschneider, H. Lichte, D. Van Dyck:
"Inelastic electron holography as a variant of the Feynman thought experiment";
Ultramicroscopy, 107 (2007), 559 - 567.

Inelastic electron holography as a variant of the Feynman thought experiment

P.L. Potapov a, J. Verbeeck a, P. Schattschneider b, H. Lichte c and D. van Dyck a

a EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
b Institute for Solid State Physics, Vienna University of Technology, A-1040, Vienna, Austria
c Triebenberglabor, Dresden University, D-01062 Dresden, Germany

Abstract

Using a combination of electron holography and energy filtering, interference fringes produced after inelastic interaction of electrons with hydrogen molecules are examined. Surprisingly, the coherence of inelastic scattering increases when moving from the surface of a hydrogen-containing bubble to the vacuum. This phenomenon can be understood in terms of the Feynman two-slit thought experiment with a variable ambiguity of the which-way registration.

Coherence and correlation in electron scattering

http://dx.doi.org/10.1016/j.ultramic.2006.11.003

http://dx.doi.org/10.1016/j.ultramic.2006.11.003