München 2004 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
Q: Quantenoptik und Photonik
Q 11: Fallen und Kühlung
Q 11.3: Talk
Monday, March 22, 2004, 17:00–17:15, HS 224
Towards atom-photon entanglement — •Daniel Schlenk1, Markus Weber1, Juergen Volz1, Johannes Vrana1, Christian Kurtsiefer2, and Harald Weinfurter1,3 — 1Sektion Physik der LMU Muenchen — 2National University of Singapore — 3Max-Planck Institut fuer Quantenoptik, Garching
Conservation of angular momentum during spontaneous decay of a lambda-type atomic transition generates a spin entangled state between the atom and the emitted photon. A localized single atom in a far-off-resonant dipole trap offers the opportunity to investigate the non-classical correlation properties of such an entangled atom-photon state.
In our experiment we load a single Rb87 atom from a sample of laser cooled atoms into an optical dipole trap. The observed photon anti-bunching in the atomic fluorescence light verifies the presence of single atoms inside our trap. We report on state selective detection measurements of a single Rb atom using a combination of a dark-state-projection and a STIRAP technique. This measurement is the key ingredient in order to analyze the spin correlations and to determine the amount of entanglement in our atom-photon system.