Darmstadt 2008 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 41: Quanteninformation (Konzepte und Methoden III)
Q 41.8: Vortrag
Donnerstag, 13. März 2008, 15:45–16:00, 1B
Covariance Matrices as a Tool in Entanglement Theory — •Oleg Gittsovich1,2, Otfried Gühne1, Philipp Hyllus3, and Jens Eisert4 — 1Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, *Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Otto-Hittmair-Platz, 1, 6020 Innsbruck, Austria — 2Institut für Theoretische Physik,Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria — 3Institut für Theoretische Physik, Universität, Hannover, Appelstrasse 2, 30167 Hannover, Germany — 4QOLS, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW, UK, Institute for Mathematical Sciences, Imperial College London, Prince's Gate, London SW7 2PE, UK
One of the most interesting features of a quantum state from the point of view of the quantum information theory is entanglement. Entangled states are used everywhere in this field and allow to achieve such tasks as teleportation of a quantum state, quantum communication for two or more parties and intensively used in quantum computation and quantum cryptography.
In this talk we will have look at this problem from perspective of view, which uses familiar notions like variances and covariance matrix (CM).