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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)
7th Mathematical Physics Meeting: Summer School and Conference on Modern Mathematical Physics 2012, MPHYS 2012; Belgrade; Serbia; 9 September 2012 through 19 September 2012 p. 67-84. (2012)
[Konferensbidrag, refereegranskat]

In this lecture I discuss gravity in the light-front formulation (light-cone gauge) and show how possible counterterms arise. We find that Poincaré 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.

Denna post skapades 2016-05-18.
CPL Pubid: 236692


Institutioner (Chalmers)

Institutionen för fundamental fysik, Elementarpartikelfysik (2005-2013)



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