Hannover 2013 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
A: Fachverband Atomphysik
A 19: Interaction with VUV and X-ray light II
A 19.2: Vortrag
Dienstag, 19. März 2013, 14:15–14:30, F 428
Spontaneously Generated Coherences in the X-ray regime — •Kilian Heeg1, Ralf Röhlsberger2, Hans-Christian Wille2, Kai Schlage2, Tatyana Guryeva2, Ingo Uschmann3, Berit Marx3, Kai-Sven Schulze4, Tino Kämpfer4, and Jörg Evers1 — 1Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany — 3Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, Germany — 4Helmholtz-Institut Jena, Germany
We investigate the reflected signal of a thin film cavity [1] probed by hard x-rays. For the interaction of the photons and resonant Mößbauer nuclei 57Fe under the influence of a magnetic field, a consistent quantum optical description is established. By this we can identify the fundamental interaction processes on a quantum level. We find that Spontaneously Generated Coherences (SGC, [2,3]) emerge in our system and can give rise to pronounced interference minima. SGC arise due to vacuum-induced couplings, but most of their effects and consequences only appear in level schemes which do not exist in real atomic systems. The effective level scheme in our cavity, however, permits the direct observation of SGC, rendering it a powerful device to observe advanced quantum optical effects.
[1] R. Röhlsberger et al., Science 328, 1248-1251 (2010)
[2] G. S. Agarwal, Springer Tracts in Modern Physics 70, 1-128 (1974)
[3] M. Kiffner et al., Progress in Optics 55, 85-197 (2010)