Starting from a short review of spaces of generalized sections of vector bundles, we give a concise systematic description, in precise geometric terms, of Leray densities, principal value densities, propagators and elementary solutions of field equations in flat spacetime. We then sketch a partly original geometric presentation of free quantum fields and show how propagators arise from their graded commutators in the boson and fermion cases.
Special generalized densities and propagators: A geometric account / Canarutto, Daniel. - In: INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS. - ISSN 0219-8878. - STAMPA. - 16:(2016), pp. 1-41. [10.1142/S0219887815300044]
Special generalized densities and propagators: A geometric account
CANARUTTO, DANIEL
2016
Abstract
Starting from a short review of spaces of generalized sections of vector bundles, we give a concise systematic description, in precise geometric terms, of Leray densities, principal value densities, propagators and elementary solutions of field equations in flat spacetime. We then sketch a partly original geometric presentation of free quantum fields and show how propagators arise from their graded commutators in the boson and fermion cases.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.