Konwersatorium im. Leopolda Infelda
Nowa Auli (425), ul. Hoża 69
2010-11-25 (15:30) 
Prof. Dr. Dagmar Bruss (Institut fuer Theoretische Physik III Heinrich-Heine-Universitaet Duesseldorf)
Quantum entanglement: analysis and detection
Entanglement is one of the most fascinating features of quantum mechanics, and enables various protocols in quantum information processing. The aim of this talk is to give an overview of methods for the theoretical analysis of entanglement, and to provide a link to the detection of entanglement in the laboratory. Special emphasis will be given to the method of witness operators. In the context of measuring witness operators, a connection between entanglement and diffractive properties of periodic spin systems will be pointed out.