Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics II
Q 42.26: Poster
Mittwoch, 13. März 2019, 16:15–18:15, S Atrium Informatik
Spatio-Temporal Higher-Order Photon Correlations of a Few-Atom System — •Lukas Götzendörfer1,2, Simon Mährlein1, Kevin Günther3,1, Jörg Evers4, and Joachim von Zanthier1,2 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, 91052 Erlangen, Germany — 3Max Planck Institute for the Science of Light (MPL), 91058 Erlangen, Germany — 4Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany
We study a particular model for Single Photon Emitters (SPE) and the resulting multi-photon interferences in space and time: Investigating the time evolution of two-level atoms spontaneously emitting photons gives rise to a time dependent electric field amplitude in the far field. By utilizing field intensity correlations we are able to calculate the collective emission properties of the atomic system manifesting themselves in modified spontaneous decay rates. The correlations are studied for a system of three atoms, with two atoms in close vicinity to each other such that they interact via dipole-dipole interaction. Although the residual atom is separated by a large distance and hence does not interact with the other two atoms it can be used to alter the systems' emission properties by measurement-induced entanglement. This model system can be interpreted as a generalized free-space Hong-Ou-Mandel setup where the probability of measuring three photons not only depends on space but also on time.