Abstract

NOJIRI, Shin'ichi; OBREGON, Octavio  and  ODINTSOV, Sergei D.. Cosmological constant and brane new world. Rev. mex. fis. [online]. 2002, vol.48, n.1, pp.19-22. ISSN 0035-001X.

The estimation of the cosmological constant in inflationary brane new world models is done. It is shown that basically it is quite large, of the same order as in anomaly-driven inflation. However, for some fine-tuning of bulk gravitational constant and AdS scale parameter l² it maybe reduced to sufficiently small value. Bulk higher derivative AdS gravity with quantum brane matter may also serve as the model where small positive cosmological constant occurs.

Keywords : Cosmological constant; brane-world; quantum gravity.