Xingyang Yu

A textbook by Xingyang Yu

String-Theoretic
Construction of
Quantum Field Theory

A collection exploring how quantum field theories emerge from strings, branes and geometry, with explicit physical dictionaries, derivations and worked examples.

18 volumes3,795 pagesFree to read
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First edition · November 2026

The reading collection

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Foundations

The field theory, string, brane and geometry toolkit.

Branes and field theories

From singularity probes to brane dynamics and webs.

Geometric engineering

Type II strings, M-theory and F-theory constructions.

M5-branes and worldsheets

Class S, protected structures and worldsheet constructions.

About this edition

These reading PDFs accompany the StringQFT v1.0 release. Volume XVI uses the updated title M5-Brane Theories and Class S; its chapter text is unchanged. Each volume retains its own prerequisites and scientific qualifications.

Drafted with AI assistance under the supervision of Xingyang Yu. Free to read does not imply unrestricted reuse: see the reuse terms. Code, editable sources and supporting resources are available on GitHub.

For corrections, please include the volume and page number when contacting the author.