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Counterterms in Gravity in the Light-Front Formulation and a D=2 Conformal-Like Symmetry in Gravity

Lars Brink (Institutionen för fundamental fysik, Elementarpartikelfysik)
Romanian Journal of Physics (1221-146X). Vol. 58 (2013), 5-6, p. 485-501.
[Artikel, refereegranskad vetenskaplig]

In this lecture I discuss gravity in the light-front formulation (light-cone gauge) and show how possible counterterms arise. We find that Poincare invariance is not enough to find the three-point counterterms uniquely. Higher-spin fields can intrude and mimic three-point higher derivative gravity terms. To select the correct term we have to use the remaining reparametrization invariance that exists after the gauge choice. We finally sketch how the corresponding programme for N = 8 Supergravity should work.

Nyckelord: Quantum gravity, Supergravity



Denna post skapades 2013-09-30. Senast ändrad 2016-07-15.
CPL Pubid: 184296

 

Institutioner (Chalmers)

Institutionen för fundamental fysik, Elementarpartikelfysik (2005-2013)

Ämnesområden

Fysik

Chalmers infrastruktur