# Quantum Field Theory II

## Introductions to Quantum Gravity, Supersymmetry and String Theory

Part of the Graduate Texts in Physics book series (GTP)

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Textbook

Part of the Graduate Texts in Physics book series (GTP)

This book takes a pedagogical approach to explaining quantum gravity, supersymmetry and string theory in a coherent way. It is aimed at graduate students and researchers in quantum field theory and high-energy physics.

In the second part the author introduces supersymmetry and its consequences. The generation of superfields is represented in detail. Supersymmetric generalizations of Maxwell’s Theory as well as of Yang-Mills field theory, and of the standard model are worked out. Spontaneous symmetry breaking, improvement of the divergence problem in supersymmetric field theory, and its role in the hierarchy problem are covered. The unification of the fundamental constants in a supersymmetric version of the standard model are then studied. Geometrical aspects necessary to study supergravity are developed culminating in the derivation of its full action.

The third part introduces string theory and the analysis of the spectra of the mass (squared) operator associated with the oscillating strings. The properties of the underlying fields, associated with massless particles, encountered in string theory are studied in some detail. Elements of compactification, duality and D-branes are given, as well of the generation of vertices and interactions of strings. In the final sections, the author shows how to recover GR and the Yang-Mills field Theory from string theory.

QFT textboook Loop quantum gravity Euler-Poincare characteristic theorem Yang-Mills field theory Supersymmetric generalizations ADM formalism Bosonic strings Compactification of extra dimensions From string theory to Einstein's GR

- DOI https://doi.org/10.1007/978-3-319-33852-1
- Copyright Information Springer International Publishing Switzerland 2016
- Publisher Name Springer, Cham
- eBook Packages Physics and Astronomy
- Print ISBN 978-3-319-33851-4
- Online ISBN 978-3-319-33852-1
- Series Print ISSN 1868-4513
- Series Online ISSN 1868-4521
- Buy this book on publisher's site