Berlin 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 48: Quantum effects: Interference and correlations I
Q 48.6: Vortrag
Donnerstag, 20. März 2014, 17:45–18:00, DO26 208
Hanbury Brown and Twiss and beyond - super- an subradiant emission from incoherent classical and non-classical sources — Daniel Bhatti1, Ralph Wiegner1, Steffen Oppel1,2, and •Joachim von Zanthier1,2 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Erlangen, Germany — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, Erlangen, Germany
Super- and subradiance gained increased interest recently due to a number of ground-braking experiments with single-photon excited Dicke states observing collective Lamb shifts in regular arrays of nuclei [2,3] or forward scattering from atomic clouds [3]. One option to produce super- and subradiant Dicke states is the repeated measurements of photons starting from the fully excited system. This amounts to measure the m-th order photon correlation function for N ≥ m statistically independent incoherent scatterers. Due to the collective coherence of the Dicke states super- and subradiance is expected to occur for quantum mechanical systems only. Here we show that super- and subradiant spatial emission patterns can also be observed with statistically independent incoherent classical sources. Experimental results with thermal light confirm the theoretical predictions.
[1] R. Röhlsberger et al., Science 328, 1248 (2010).
[2] M. O. Scully, A. A. Svidzinsky, Science 328, 1239 (2010).
[3] C. W. Chou et al., Nature (London) 438, 828 (2005); T. Chanelire et al., ibid. 833 (2005); M. D. Eisaman et al., ibid. 837 (2005).