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001449554 001__ 1449554
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001449554 020__ $$a9783031137266$$q(electronic bk.)
001449554 020__ $$a3031137264$$q(electronic bk.)
001449554 020__ $$z3031137256
001449554 020__ $$z9783031137259
001449554 0247_ $$a10.1007/978-3-031-13726-6$$2doi
001449554 035__ $$aSP(OCoLC)1344538482
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001449554 050_4 $$aQC174.45
001449554 08204 $$a530.14/3$$223/eng/20220920
001449554 1001_ $$aAlvarez, Enrique.$$0no2002074399
001449554 24510 $$aCovariant techniques in quantum field theory$$h[electronic resource] /$$cEnrique Álvarez, Jesús Anero.
001449554 264_1 $$aCham :$$bSpringer,$$c2022.
001449554 300__ $$a1 online resource (94 pages).
001449554 336__ $$atext$$btxt$$2rdacontent
001449554 337__ $$acomputer$$bc$$2rdamedia
001449554 338__ $$aonline resource$$bcr$$2rdacarrier
001449554 4901_ $$aSpringerBriefs in Physics
001449554 504__ $$aIncludes bibliographical references.
001449554 5050_ $$aIntro -- Preface -- Contents -- 1 Introduction and Generalities -- 1.1 Gravitation and Quantum Field Theory: The Big Picture -- 1.2 Schwinger's Action Principle and Peierls'brackets -- 1.3 Gravitation and Quantum Field Theory: Poor Man's Approach -- 1.4 Exact Symmetries in Quantum Gravity -- 2 The Background Field Approach in Quantum Field Theory -- 2.1 Gauge Invariance of the One Loop Effective Action -- 3 The One Loop Effective Action -- 3.1 Zeta Function -- 3.2 Heat Kernel -- 3.3 Covariant Perturbation Theory -- 3.4 Flat Space Determinants -- 3.5 The Conformal Anomaly -- 3.6 Vacuum Energy
001449554 5058_ $$a4 Divergences Out of Schwinger-DeWitt Coefficients -- 4.1 Coincidence Limits of Covariant Derivatives of the World Function -- 4.2 Coincidence Limits of Derivatives of the Van Vleck Determinant -- 4.3 Schwinger-DeWitt Coefficients -- 4.4 Recursion Relations for the Coefficients of the Short ... -- Appendix One-Loop Divergences in First Order Einstein-Hilbert Gravity -- Appendix References
001449554 506__ $$aAccess limited to authorized users.
001449554 520__ $$aThe purpose of this book is to illustrate some of the most important techniques which are helpful in combinatorial problems when computing quantum effects in covariant theories, like general relativity. In fact, most of the techniques find application also in broader contexts, such as low energy effective (chiral) Lagrangians or even in specific problems in condensed matter. Some of the topics covered are: the background field approach and the heat kernel ideas. The arguments are explained in some detail and the presentation is meant for young researchers and advanced students who are starting working in the field. As prerequisite the reader should have attended a course in quantum field theory including Feynmans path integral. In the Appendix a nontrivial calculation of one-loop divergences in Einstein-Hilbert gravity is explained step-by-step.
001449554 588__ $$aOnline resource; title from PDF title page (SpringerLink, viewed September 20, 2022).
001449554 650_0 $$aQuantum field theory.$$0sh 85109461 
001449554 655_0 $$aElectronic books.
001449554 7001_ $$aAnero, Jesús.
001449554 77608 $$iPrint version:$$aÁlvarez, Enrique$$tCovariant Techniques in Quantum Field Theory$$dCham : Springer International Publishing AG,c2022$$z9783031137259
001449554 830_0 $$aSpringerBriefs in physics.$$0no2011109146
001449554 852__ $$bebk
001449554 85640 $$3Springer Nature$$uhttps://univsouthin.idm.oclc.org/login?url=https://link.springer.com/10.1007/978-3-031-13726-6$$zOnline Access$$91397441.1
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001449554 980__ $$aBIB
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