Lambda-universe in scalar-tensor gravity

Details Lambda-universe in scalar-tensor gravity Lambda-universe in scalar-tensor gravity

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.323..103b&link_type=abstract

Astrophysics and Space Science, Volume 323, Issue 1, pp.103-106

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We present a lambda-Universe, in scalar-tensor gravity, reviewing Berman and Trevisan’s inflationary case (Berman and Trevisan in Int. J. Theor. Phys., 2009) and then we find a solution for an accelerating power-law scale-factor. The negativity of cosmic pressure implies acceleration of the expansion, even with Λ<0. The cosmological term, and the coupling “constant”, are in fact, time-varying.

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