We propose general guidelines in order to incorporate the geometrical description of gravity in quantum field theory and address the problem of UV divergences non-perturbatively. In our aproach, each virtual particle in a Feynman graph should be described by a modified propagator and move in the space-time generated by the other particles in the same graph according to Einstein's (semiclassical) equations
Gravitational renormalization of quantum field theory: A 'Conservative' approach / R. Casadio. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - STAMPA. - 174:(2009), pp. 012058-012058. (Intervento presentato al convegno FOURTH INTERNATIONAL WORKSHOP DICE2008: FROM QUANTUM MECHANICS THROUGH COMPLEXITY TO SPACETIME: THE ROLE OF EMERGENT DYNAMICAL STRUCTURES tenutosi a Castello Pasquini/Castiglioncello (Tuscany), Italy nel 22–26 September).
Gravitational renormalization of quantum field theory: A 'Conservative' approach
CASADIO, ROBERTO
2009
Abstract
We propose general guidelines in order to incorporate the geometrical description of gravity in quantum field theory and address the problem of UV divergences non-perturbatively. In our aproach, each virtual particle in a Feynman graph should be described by a modified propagator and move in the space-time generated by the other particles in the same graph according to Einstein's (semiclassical) equationsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
