**What is String Theory?**

by Joseph Polchinski

**Publisher**: arXiv 1994**Number of pages**: 154

**Description**:

The first part is an introduction to conformal field theory and string perturbation theory. The second part deals with the search for a deeper answer to the question posed in the title. Contents: Conformal Field Theory; String Theory; Vacua and Dualities; String Field Theory or Not String Field Theory; Matrix Models.

Download or read it online for free here:

**Download link**

(1.1MB, PDF)

## Similar books

**String Theory**

by

**David Tong**-

**University of Cambridge**

These lecture notes provide a detailed introduction to the bosonic string and conformal field theory. The text is aimed at beginning graduate students. It assumes a working knowledge of quantum field theory and general relativity.

(

**6750**views)

**Introduction to M Theory**

by

**Miao Li**-

**arXiv**

This short book is an introduction to some recent developments in string theory and M theory. The author tries to concentrate on the main physical aspects, and often leaves more technical details to the original literature.

(

**5958**views)

**D-Branes, Tachyons, and String Field Theory**

by

**Washington Taylor, Barton Zwiebach**-

**arXiv**

Introduction to tachyon condensation in Witten's cubic bosonic open string field theory. We use both the low-energy Yang-Mills description and the language of string field theory to explain the problem of tachyon condensation on unstable D-branes.

(

**5442**views)

**Topological Strings and their Physical Applications**

by

**Andrew Neitzke, Cumrun Vafa**-

**arXiv**

We give an introductory review of topological strings and their application to various aspects of superstrings and supersymmetric gauge theories. This review includes developing the necessary mathematical background for topological strings.

(

**4846**views)