In this brief review, I discuss some of the effects of the Nambu Goto cosmic strings in the
early universe. Nambu Goto strings are formed from symmetry breaking phase transitions in …

We discuss the possibility of generation of baryon inhomogeneities in a quark-gluon plasma
phase due to moving Z (3) interfaces. By modeling the dependence of effective mass of the …

We reanalyze the allowed parameters for inhomogeneous big bang nucleosynthesis in light
of the WMAP constraints on the baryon-to-photon ratio η and a recent measurement which …

We do a detailed study on vortex formation in a magnetized plasma within the spacetime of
a moving cosmic string using analytical and numerical methods. The conical spacetime …

This article presents an original code for big bang nucleosynthesis in a baryon
inhomogeneous model of the Universe. In this code neutron diffusion between high and low …

We study the diffusion of massive particles in the space time of an Abelian Higgs string. The
particles in the early universe plasma execute Brownian motion. This motion of the particles …

Hadronic inhomogeneities are formed after the quark hadron phase transition. The nature of
the phase transition dictates the nature of the inhomogeneities formed. Recently some …

Recent progress in calculations of QED radiative corrections to parity nonconservation in
atoms is reviewed. The QED vacuum polarization, the self-energy corrections and the vertex …

Baryon inhomogeneities are generated early in the universe. These inhomogeneities affect
the phase transition dynamics of subsequent phase transitions, they also affect the …

We consider wakelike density fluctuations produced by cosmic strings at the quark-hadron
transition in the early universe. We show that low momentum axions which are produced …