Cosmological argument for a/theism: Craig's and Smith's interpretation of big bang cosmology

Big-bang Nucleosynthesis Predictions for Precision Cosmology

The determination of the primeval deuterium abundance has opened a precision era in big-bang nucleosynthesis (BBN), making accurate predictions more important than ever before. We present in analytic form new, more precise predictions for the light-element abundances and their error matrix. Using our predictions and the primeval deuterium abundance we infer a baryon density of Bh = 0:020 0:002 ...

Pre-Big Bang Cosmology and Quantum Fluctuations

In the framework of string theory, the Pre-Big Bang scenario [1,2] provides an alternative to the standard inflationary paradigm. In the Pre-Big Bang model 1 the inflationary solutions, driven by the kinetic energy of the dilaton, emerge naturally via the duality symmetries of string theory. It has, however, been argued [3] that, even though the two classical moduli of the open (K = −1), homoge...

Some Aspects of Pre Big Bang Cosmology

This is a summary of a course given at the Fourth Mexican School on Gravitation and Mathematical Physics on some aspects of PBB cosmology. After introductory remarks the lectures concentrate on some amusing consequences derived from the symmetries of the string theory with respect to such classical concepts as isotropy and homogeneity. The extra dimensions and the symmetries of the M theory are...

Big-Bang Cosmology with Photon Creation

Pre - Big - Bang In String Cosmology

The duality-type symmetries of string cosmology naturally lead us to expect a pre-big-bang phase of accelerated evolution as the dual counterpart of the decelerating expansion era of standard cosmology. Several properties of this scenario are discussed, including the possibility that it avoids the initial singularity and that it provides a large amount of inflation. We also discuss how possible...