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Introduction to Quantum Fields on a Lattice

Paperback Engels 2002 9780521890519
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Samenvatting

This book provides a concrete introduction to quantum fields on a lattice: a precise and non-perturbative definition of quantum field theory obtained by replacing continuous space-time by a discrete set of points on a lattice. The path integral on the lattice is explained in concrete examples using weak and strong coupling expansions. Fundamental concepts such as 'triviality' of Higgs fields and confinement of quarks and gluons into hadrons are described and illustrated with the results of numerical simulations. The book also provides an introduction to chiral symmetry and chiral gauge theory, as well as quantized non-abelian gauge fields, scaling and universality. Based on the lecture notes of a course given by the author, this book contains many explanatory examples and exercises, and is suitable as a textbook for advanced undergraduate and graduate courses.

Specificaties

ISBN13:9780521890519
Taal:Engels
Bindwijze:Paperback
Aantal pagina's:284
Uitgever:Cambridge University Press
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Inhoudsopgave

Preface; 1. Introduction; 2. Path integral and lattice regularisation; 3. O(n) models; 4. Gauge field on the lattice; 5. U(1) and SU(n) gauge theory; 6. Fermions on the lattice; 7. Low mass hadrons in QCD; 8. Chiral symmetry; Appendix 1. SU(n); Appendix 2. Temporal gauge quantization in the continuum; Appendix 3. Fermionic coherent states; Appendix 4. Spinor fields.

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        Introduction to Quantum Fields on a Lattice