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SYSA: Quantum state analysis and estimation

SYSA 1: Quantum state analysis and estimation I

SYSA 1.4: Hauptvortrag

Dienstag, 14. März 2006, 12:00–12:30, HVI

Analysing entangled states — •Harald Weinfurter^1,2, Nikolai Kiesel^1,2, Wieslaw Laskowski³, Wenjamin Rosenfeld¹, Christian Schmid^1,2, Geza Toth², Markus Weber¹, Marek Zukowski³, and Jürgen Volz¹ — ¹Ludwig-Maximilians Universität München — ²Max-Planck-Institut für Quantenoptik — ³Universität Danzig

Entanglement often is labeled as the key resource or currency of quantum information. But particularly for the No-dqcurrencyNo-dq picture it is quite important to know the real value of your money and also where you can use it at all.

We consider several experiments on atom-photon and on multi-photon entangled states to demonstrate the various possibilities for the experimental analysis of entangled states. Key requirement for such an analysis are of course short measurement time and low uncertainty. Even if general schemes exist, it is of great advantage to tailor the measurements and measurement methods to the particular state and physical system under investigation.