Thursday, 15 November 2012
G. Sardanashvily, Axiomatic classical (prequantum) field theory. Jet formalism
Abstract. In contrast with QFT, classical ﬁeld theory can be formulated in a strict mathematical way if one deﬁnes even classical ﬁelds as sections of smooth ﬁber bundles. Formalism of jet manifolds provides the conventional language of dynamic systems (nonlinear diﬀerential equations and operators) on ﬁber bundles. Lagrangian theory on ﬁber bundles is algebraically formulated in terms of the variational bicomplex of exterior forms on jet manifolds where the Euler–Lagrange operator is present as a coboundary operator. This formulation is generalized to Lagrangian theory of even and odd ﬁelds on graded manifolds. Cohomology of the variational bicomplex provides a solution of the global inverse problem of the calculus of variations, states the ﬁrst variational formula and Noether’s ﬁrst theorem in a very general setting of supersymmetries depending on higher-order derivatives of ﬁelds. A theorem on the Koszul–Tate complex of reducible Noether identities and Noether’s inverse second theorem extend an original ﬁeld theory to prequantum ﬁeld-antiﬁeld BRST theory. Particular ﬁeld models, jet techniques and some quantum outcomes are discussed.
II. ACFT. The general framework
1. The main postulate, 2. Jet manifolds, 3. Jets and connections, 4. Lagrangian theory
of even ﬁelds, 5. Odd ﬁelds, 6. The algebra of even and odd ﬁelds, 7. Lagrangian theory
of even and odd ﬁelds, 8. Noether’s ﬁrst theorem in a general setting, 9. The Koszul–Tate complex of Noether identities, 10. Noether’s inverse second theorem, 11. BRST extended ﬁeld theory, 12. Local BRST cohomology.
III. Particular models
13. Gauge theory of principal connections, 14. Topological Chern–Simons theory, 15.
Topological BF theory, 16. SUSY gauge theory, 17. Field theory on composite bundles,
18. Symmetry breaking and Higgs ﬁelds, 19. Dirac spinor ﬁelds, 20. Natural and gauge natural bundles. 21. Gauge gravitation theory, 22. Covariant Hamiltonian ﬁeld theory,
23. Time-dependent mechanics, 24. Jets of submanifolds, 25. Relativistic mechanics, 26. String theory.
IV. Quantum outcomes
27. Quantum master equation, 28. Gauge ﬁxing procedure, 28. Green function identities
Wednesday, 7 November 2012
WikipediA article "History of Quantum Field Theory" says the following.
“… Of great importance are the studies of Soviet physicists, Viktor Ambartsumian and Dmitri Ivanenko, in particular the Ambarzumian - Ivanenko hypothesis of creation of massive particles (published in 1930) which is the cornerstone of the contemporary quantum field theory. The idea is that not only the quanta of the electromagnetic field, photons, but also other particles (including particles having nonzero rest mass) may be born and disappear as a result of their interaction with other particles. This idea of Ambartsumian and Ivanenko formed the basis of modern quantum field theory and theory of elementary particles.”
V. Ambarzumian, D. Iwanenko, Les électrons inobservables et les rayons, Compt. Rend. Acad Sci. Paris 190 (1930) 582.