Counterterms in gravity in the light-front formulation and a D=2 conformal-like symmetry in gravity
Artikel i vetenskaplig tidskrift, 2013

In this paper we 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.

Models of Quantum Gravity

Conformal and W Symmetry


Anders Bengtsson

Högskolan i Borås

Lars Brink

Chalmers, Teknisk fysik, Elementarpartikelfysik

S-S. Kim

Korea Institute for Advanced Study

Journal of High Energy Physics

1126-6708 (ISSN) 1029-8479 (eISSN)


Subatomär fysik