Prof. Mika Hirvensalo (University of Turku)
The foundations of quantum information theory were established by John von Neumann in 1920s, but the challenges and even paradoxical features of quantum information have remained an issue since then. One major problem pointed out by A. Einstein, B. Podolsky, and N. Rosen has been known as EPR-paradox since 1935, and even more fundamental problem, so-called Schrödinger cat was introduced in the same year.
In this lecture, we outline the principles of quantum information, and explain how so-called Bell inequalities can draw a difference between quantum and classical information. It is demonstrated how the EPR paradox can be resolved via Bell inequalities.