Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Similares en SciELO
Compartir
Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Rev. mex. astron. astrofis vol.45 no.2 Ciudad de México oct. 2009
Simple Model with TimeVarying FineStructure "Constant"
Marcelo Samuel Berman
Instituto Albert Einstein, Av. Candido Hartmann, 575, No. 17, 80730-440, Curitiba-PR, Brazil. (msberman@institutoalberteinstein.org).
Received 2009 March 2
Accepted 2009 May 11
RESUMEN
Como una extensión del trabajo publicado con L.A. Trevisan, estudiamos la generalización de la LNH de Dirac, de tal manera que la variación en el tiempo de la constante de la estructura fina debida a variaciones en la permitividad eléctrica y magnética queda incluida al igual que otras variaciones (las "constantes" gravitatoria y cosmológica, etc.). Consideramos el Universo presente y también un escenario inflacionario. La rotación del Universo puede considerarse en el modelo.
ABSTRACT
Extending the original version written in colaboration with L.A. Trevisan, we study the generalisation of Dirac's LNH, so that timevariation of the finestructure constant, due to varying electrical and magnetic permittivities is included along with other variations (cosmological and gravitational "constants"), etc. We consider the present Universe, and also an inflationary scenario. Rotation of the Universe is a given possibility in this model.
Key Words: cosmology: theory.
DESCARGAR ARTÍCULO EN FORMATO PDF
REFERENCES
Albrecht, A., & Magueijo, J. 1999, Phys. Rev. D, 59, 043516 [ Links ]
Bahcall, J. N., & Schmidt, M. 1967, Phys. Rev. Lett., 19, 1294 [ Links ]
Barrow, J. D. 1998, in 3er RESCEU Symp. on Particle Cosmology, ed. K. Sato, T. Yanagida, & T. Shiromizu (Tokyo: Universal Academic Press), 221 [ Links ]
. 1990, in Modern Cosmology in Retrospect, ed. B. Bertotti, R. Balbinot, S. Bergia & A. Messina (Cambridge: Cambridge Univ. Press), 67 [ Links ]
Barrow, J. D., & Magueijo, J. 1999, Class. Quantum Grav., 16, 1435 [ Links ]
Bekenstein, J. D. 1982, Phys. Rev. D, 25, 1527 [ Links ]
Berman, M. S. 1992a, Int. J. Theor. Phys., 31, 1447 [ Links ]
. 1992b, Int. J. Theor. Phys., 31, 1217 [ Links ]
. 1994, Ap & SS, 215, 135 [ Links ]
. 1996, Int. J. Theor. Phys., 35, 1789 [ Links ]
. 2007a, Introduction to General Relativity and the Cosmological Constant Problem (New York: Nova Science) [ Links ]
. 2007b, Introduction to General Relativistic and ScalarTensor Cosmologies (New York: Nova Science) [ Links ]
Berman, M. S., & Trevisan, L. A. 2001a, arXiv:grqc/0112011 [ Links ]
. 2001b, arXiv:grqc/0111102 [ Links ]
. 2001c, arXiv:grqc/0111101 [ Links ]
Dirac, P. A. M. 1938, Proc. Roy. Soc. London A, 165, 199 [ Links ]
. 1974, Proc. Roy. Soc. London A, 338, 439 [ Links ]
Eddington, A. S. 1933, Expanding Universe (Cambridge: Cambridge Univ. Press) [ Links ]
. 1939, Science Progress, 34, 225 [ Links ]
Garnavich, P. M., et al. 1998, ApJ, 493, L53 [ Links ]
Gomide, F. M. 1976, Lett. Nuovo Cimento, 15, 595 [ Links ]
Moffat, J. W. 1993, Int. J. Mod. Phys. D, 2, 351 [ Links ]
Perlmutter, S., et al. 1997, ApJ, 483, 565 [ Links ]
Perlmutter, S., et al. 1998, Nature, 391, 51 [ Links ]
Riess, A. G., et al. 1998, AJ, 116, 1009 [ Links ]
Schmidt, B. P., et al. 1998, ApJ, 507, 46 [ Links ]
Webb, J. K., Flambaum, V. V., Churchill, Ch. W., Drinkwater, M. J., & Barrow, J. D. 1999, Phys. Rev. Lett., 82, 884 [ Links ]
Webb, J. K., et al. 2001, Phys. Rev. Lett., 87, 091301 [ Links ]