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String Theory

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These pages are notes following Barton Zwiebach's book "A First Course in String Theory", 2nd Edition (2009). This is at the advanced undergraduate
or beginning graduate level. It is focused mostly on bosonic string theory and light-cone quantization, mostly not heterotic or string field theory
or Lorentz covariant quantization. The pages may extend into more advanced subjects later.

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Part I: Basics

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I. Basics

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What is string theory?

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Heuristic Overview

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II. Special Relativity and Extra Dimensions

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III. Electromagnetism and Gravitation in Various Dimensions

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IV. Nonrelativistic Strings

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V. Relativistic Point Particles

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VI. Relativistic Strings

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VII. String Parameterization and Classical Motion

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VIII. World-Sheet Currents

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IX. Light-cone Relativistic Strings

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X. Light-cone Fields and Particles

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XI. Relativistic Quantum Point Particle

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XII. Relativistic Quantum Open Strings

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XIII. Relativistic Quantum Closed Strings

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XIV. Relativistic Superstrings

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*Last updated: 8/2/2020*