Quantum, classical and discord correlations

Vlatko Vedral (Professor of Quantum Information Science at University of Oxford, Professor of Physics at National University of Singapore)

Info

Date	6th November 2009 (week 4, Michaelmas Term 2009)
Time	14:00
Place	Lecture Theatre B

Abstract

In my talk I plan to review the notion of correlations in quantum mechanics. I will show that in addition to quantum (entanglement) and classical correlations there is another type of correlation usually termed "discord". What is more is that discord could lead to a greater than classical efficiency even when entanglement is absent. My talk will contain a number of worked out examples of simple two or many qubit states.