Theory Colloquia

Gravity as a double copy of gauge theory and implications for UV properties

Name: Gravity as a double copy of gauge theory and implications for UV properties
Start: 2012-03-21T14:00:00+01:00
End: 2012-03-21T15:00:00+01:00
Location: CERN

by Zvi Bern (Univ. of California Los Angeles (US))

Wednesday 21 Mar 2012, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

TH Theory Conference Room

CERN

Description

We will show that in a precise sense gravity can be thought of as a double copy of gauge theory. This notion greatly aids multiloop calculations in extended supergravity theories, demonstrating that such theories are far better behaved in the ultraviolet than had been believed possible. As a concrete recent example we show that the expected 3 loop R^4 counterterm of N=4 supergravity, in fact, has a vanishing coefficient. Progress in understanding the UV properties of N=8 supergravity will also be described.