The Oskar Klein Memorial Lectures Volume 3

This is a collection of lectures given by some of the most prominent theoretical physicists of today. In a form designed to be accessible to the interested general physicist, the book covers topics ranging from the use of field-theoretical methods in different contexts via duality symmetries between various field theories to the Ads/CFT correspondence and cosmology. 

The book should be of interest to researchers and graduate students in high-energy physics, theoretical physics, astrophysics, cosmology and the history of physics.