Exponential Lagrangian for the gravitational field and the problem of vacuum energy

International Journal of Modern Physics A

Volumn 23, Issue 8, 2008, Pages 1286-1289

  Lecian, Orchidea Maria ^a   Montani, Giovanni ^a,b,c  

^a SAPIENZA UNIVERSITY OF ROME   (Italy)

^b ENEA   (Italy)

^c ICRANET   (Italy)

Author keywords

Canonical formalism; Cosmological constant; Cosmology; Lagrangians; Variational principles

Indexed keywords

EID: 43949095821     PISSN: 0217751X     EISSN: None     Source Type: Journal    
DOI: 10.1142/S0217751X0804024X     Document Type: Conference Paper

References (8)

1. A. Clocchiatti et al, Astrophys. J. 642 1 (2006);
2. A. G. Riess et al., Astron. J. 116 1009 (1998).
3. S. Bludman, The Dynamics Driving Cosmological Acceleration: Dark Energy or Modified Gravity?, astro-ph/0702085;
4. O. Bertolami, Dark Energy, Dark Matter and Gravity, Proceeding of From Quantum to Cosmos: Fundamental Physics Research in Space, 22-24 May 2006, Warrenton, Virginia, USA.
5. O. M. Lecian, G. Montani, Dark Energy as a Relic of the Vacuum-Energy Cancellation?, to appear in IJMPD;
6. M. Abdelwahab, S. Carloni, P. K. S. Dunsby, Cosmological dynamics of exponential gravity, arxiv 0706.1375;
7. G. Cognola, E. Elizalde, S. Nojiri, S. D. Odintsov, L. Sebastiani, S. Zerbini, A class of viable modified f(R) gravities describing ination and the onset of accelerated expansion, arXiv:0712.4017.
8. J. D. Barrow, S. Cotsakis, Phys. Lett. B 258 299 (1991).