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Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 58: Ultracold Atoms: Trapping and Cooling 2

Q 58.9: Talk

Friday, March 18, 2011, 12:30–12:45, HSZ 02

Reconstructing the Wigner function of an atomic ensemble — •Roman Schmied and Philipp Treutlein — Departement Physik, Universität Basel, Schweiz

At the core of quantum information technology lies the deterministic and robust generation of entanglement. The accurate measurement of this entanglement is central for advancing the techniques for entanglement generation. For this we have developed a novel method which allows us to reconstruct the Wigner function of the total pseudospin of a large ensemble of ultracold atoms from tomographic data. We illustrate the method with experimental data from a spin-squeezed cloud of 87Rb atoms.

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