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Advanced Concepts in Quantum Field Theory


Advanced Concepts in Quantum Field Theory

With Exercises
SpringerBriefs in Physics

von: James M. Cline

CHF 71.00

Verlag: Springer
Format: PDF
Veröffentl.: 21.10.2020
ISBN/EAN: 9783030561680
Sprache: englisch

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Beschreibungen

<p>This book comprises the second half of a quantum field theory (QFT) course for graduate students. It gives a concise introduction to advanced concepts that are important for research in elementary particle theory.&nbsp; Topics include the path integral, loop expansion, Feynman rules, various regularization methods, renormalization, running couplings and the renormalization group, fixed points and asymptotic freedom, effective action, Coleman-Weinberg effective potential, fermions, the axial anomaly, QED, gauge fixing, nonabelian gauge theories, unitarity, optical theorem, Slavnov-Taylor identities, beta function of Yang-Mills theory, a heuristic derivation of asymptotic freedom, instantons in SU(N) gauge theory, theta vacua and the strong CP problem. Exercises are included and are intended for advanced graduate students or postdocs seeking to deepen their understanding of QFT.</p>
Introduction.-&nbsp;The Loop Expansion.-&nbsp;The Feynman Rules.-&nbsp;Evaluation of diagrams; regularization.-&nbsp;Renormalization.-&nbsp;Other regulators.-&nbsp;The Quantum Effective Action.-&nbsp;Fermions.-&nbsp;The Axial Anomaly.-&nbsp;Abelian Gauge Theories: QED.-&nbsp;Applications of QED.-&nbsp;Nonabelian gauge theories.-&nbsp;Nonperturbative aspects of SU(N) gauge theory.- Homeworks.&nbsp;&nbsp;
<p><b>James Cline</b> is a professor of theoretical physics at McGill University.&nbsp; He earned his Ph.D. in particle physics at Caltech, held postdoctoral positions at Ohio State University, McGill, and University of Minnesota, and has been a frequent sabbatical visitor at CERN.&nbsp; His research contributions, numbering over 200, have focused on elementary particle theory and its links to cosmology and astrophysics.&nbsp; He has taught at advanced schools including Les Houches and TASI.</p>
Contains a full account of loops and renormalization in concise format Exercises allow the reader to test his/her comprehension and practice the concepts at a level suitable to starting research in the area Offers a unique perspective on specialized topics including anomalies, theta vacua and nonperturbative aspects of nonabelian gauge theories

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