Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 21: Poster I
Q 21.49: Poster
Dienstag, 9. März 2010, 16:00–19:00, Lichthof
Quantum Teleportation Between Stationary Macroscopic Objects — •Bao Xiao-Hui1,2, Xu Xiao-Fan1, Li Che-Ming1,3, Yuan Zhen-Sheng1,2, and Pan Jian-Wei1,2 — 1Physikalisches Institut der Universitaet Heidelberg, Philosophenweg 12, Heidelberg 69120, Germany — 2Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China — 3Department of Physics and National Center for Theoretical Sciences, National Cheng Kung University, Tainan 701, Taiwan
Quantum teleportation is a process to transfer a quantum state of an object without transferring the state carrier itself. So far, most of the teleportation experiments realized are within the photonic regime. For the teleportation of stationary states, the largest system reported is a single ion. We are now performing an experiment to teleport the state of an macroscopic atomic cloud which consists about 106 single atoms. In our experiment two atomic ensembles are utilized. In the first ensemble A we prepare the collective atomic state to be teleported using the quantum feedback technique. The second ensemble B is utilized to generate entanglement between it collective state with a scattered single-photon. Teleportation is realized by converting the atomic state of A to a single-photon and making a Bell state measurement with the scattered single-photon from ensemble B.