Quantum gravitational corrections to Newtonian potential

por Arif Akhundov (FTUV and Institute of Physics, NAAS (Baku))

viernes 17 nov. 2006 12:00 → 13:00 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

I will describe the treatment of gravity as a quantum effective field theory. This allows a natural separation of the low energy quantum effects from unknown high energy contributions. Within this framework, gravity is a well behaved quantum field theory at ordinary energies. In studying the quantum corrections at low energy, the dominant effects at large distance can be isolated, as these are due the propagation of massless particles of the theory and are manifested in the non-analytical contributions from diagrams. The methodology is illustrated by the calculation of the one-loop quantum corrections to the gravitational interaction of two heavy masses.