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Theoretical Physycs Group at Scuola Normale Superiore
Piazza dei Cavalieri, 7
56100 Pisa PI - Italy
ph. +39 050 509203
ph. +39 050 509111

Damiano Anselmi (Pisa U. & INFN)

Fakeons, Lee-Wick models and quantum gravity

Titolo: Abstract: A consistent theory of quantum gravity is presented. It is built as a higher derivative theory, where the would-be ghosts are tuned into "fakeons" (i.e. fake degrees of freedom) by means of a new quantization prescription. The fakeons disentangle the real parts of the amplitudes from their imaginary parts, thereby making renormalizability compatible with unitarity. The theory is also unique. Calculations at one loop are presented to illustrate how the graviton/fakeon prescription works. A number of phenomenological predictions are addressed.