String Theory

Contents Introduction Supersymmetry Two-Dimensional Conformal Field Theory String Quantization The Free String String Interactions String Field Theory Compactifications Orbifolds and Orientifolds T-Duality T-Duality M-theory Notation The metric has signature . Greek letters from the middle of the alphabet denote coordinates in spacetime. Roman letters taken from the beginning of the alphabet denote coordinates on the worldsheet. The metric is denoted . In the case where there is a metric of spacetime and a metric of the worldsheet, the worldsheet metric is denoted A lower-case is the number of dimensions. An upper-class represents the number of spacial dimensions. The Free String The Bosonic String Theory The Super string theory The Heterotic String Theories String Interactions String Field Theory Compactification Orbifolds and Orientifolds T-Duality D-branes M-Theory Particle physics Relativity S 0%