String theory builds on the conceptual foundations that have been established in elementary particle physics in the 1970s. It is a quantum theory that aims at reproducing the interaction and symmetry …

String theory yields many interesting, novel, exceptional structures, results, insights in physics and mathematics. Just to name a few: supersymmetry, higher dimensions, p-branes, dualities, …

Professor Zwiebach’s “A First Course in String Theory” is the main textbook for this course, which we’ll loosely follow (and have assigned readings and problems taken from).

First, we expect the string to have a continuous value of the center of mass momentum. On the other hand the internal motion of the string is bounded so, for that part, we expect a discrete spectrum.

String theory can be considered a particular kind of particle theory, in that its modes of excitation correspond to different particles. All these particles, which differ in spin and other quantum numbers, …

A number of more recent topics in string theory are not covered in these notes, including D-branes (except in Appendix C), the AdS/CFT correspondence, M-theory and topological string theory to …

String theory is one of the most exciting and challenging areas of modern theoretical physics, whose techniques and concepts have implications in diverse fields ranging from pure mathematics, to …