CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Aspects of higher curvature terms and U-duality

Ling Bao (Institutionen för fundamental fysik, Matematisk fysik) ; Martin Cederwall (Institutionen för fundamental fysik, Matematisk fysik) ; Bengt E. W. Nilsson (Institutionen för fundamental fysik, Matematisk fysik)
Classical and Quantum Gravity (0264-9381). Vol. 25 (2007), 9,
[Artikel, refereegranskad vetenskaplig]

We discuss various aspects of dimensional reduction of gravity with the Einstein-Hilbert action supplemented by a lowest order deformation formed as the Riemann tensor raised to powers two, three or four. In the case of R^2 we give an explicit expression, and discuss the possibility of extended coset symmetries, especially SL(n+1,Z) for reduction on an n-torus to three dimensions. Then we start an investigation of the dimensional reduction of R^3 and R^4 by calculating some terms relevant for the coset formulation, aiming in particular towards E_8(8)/(Spin(16)/Z_2) in three dimensions and an investigation of the derivative structure. We emphasise some issues concerning the need for the introduction of non-scalar automorphic forms in order to realise certain expected enhanced symmetries.

Denna post skapades 2007-06-08. Senast ändrad 2015-12-17.
CPL Pubid: 42580


Läs direkt!

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för fundamental fysik, Matematisk fysik (2005-2013)



Chalmers infrastruktur