Entanglement: characterization and application

by Muhamed Bourennane (KoF, SU)

Thursday 8 Sept 2005, 10:00 → 11:00 Europe/Stockholm

Entangled states are key elements in the field of quantum information processing. The experimental preparation, manipulation and detection of multi-photon entangled states are of great interest for implementations of quantum communication schemes, quantum cryptographic protocols, and for fundamental tests of quantum theory. We have used spontaneous parametric down conversion to produce polarization entangled two, three- and four photon states. We will give a full characterization and the entanglement properties of these multiphoton qubit states. We will present of quantum correlations and local realism versus quantum theory via Bell inequalities. We will address possible applications for multiparty quantum cryptographic protocols and quantum communication such as: secret sharing and decoherence free communication

Slides 50907_entang.pps