Artigo
Cosmological constant and the speed of light
Fecha
2001-02-01Registro en:
International Journal of Modern Physics D. Singapore: World Scientific Publ Co Pte Ltd, v. 10, n. 1, p. 41-48, 2001.
0218-2718
10.1142/S0218271801001116
WOS:000168086500007
1599966126072450
Autor
Observ Municipal Campinas Jean Nicolini
Universidade Estadual Paulista (Unesp)
Resumen
By exploring the relationship between the propagation of electromagnetic waves in a gravitational field and the light propagation in a refractive medium, it is shown that, in the presence of a positive cosmological constant, the velocity of light will be smaller than its special relativity value. Then, restricting again to the domain of validity of geometrical optics, the same result is obtained in the context of wave optics. It is argued that this phenomenon and the anisotropy in the velocity of light in a gravitational field are produced by the same mechanism.