Heidelberg 2015 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 5: Quantum Gases: Bosons I
Q 5.1: Talk
Monday, March 23, 2015, 11:30–11:45, P/H2
Towards multi-body entanglement in optical lattices — •Hanning Dai1,2, Bing Yang1,2, Xiaofan Xu1, Andreas Reingruber1, Qi Shen2, Zhensheng Yuan2, and Jianwei Pan1,2 — 1Physikalisches Institut, University Heidelberg — 2Hefei National Laboratory for Physical Science at Microscale and Department of Modern Physics, University of Science and Technology of China
Neutral atoms in optical lattices have the advantage of a natural scalability towards large qubit numbers and a weak coupling to the environment, leading to long decoherence time. However, the creation of multi-partite entanglement and the unambiguous characterization of it in optical lattices still remain challenging.
Here we propose an experiment towards the perparation of a 4-qubit GHZ-type state in an optical plaquette and introduce the progress of the project. Recently, by using two superlattices along perpendicular directions, a four-site optical plaquettes have been realized. By employing a spin-dependent superlattice, one can achieve state initialization as well as spin and site resolved addressing and detection, the key prerequisites to prepare and observe multi-body correlations in optical lattices.