827 citations · 16k across the 208 of their papers we have counts for
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Slow decay of magnetic fields in open Friedmann universes
John D. Barrow, Christos G. Tsagas
We describe how magnetic fields in Friedmann universes can experience superadiabatic growth without departing from conventional electromagnetism. The reason is the relativistic cou…
Detecting a Lorentz-Violating Field in Cosmology
Baojiu Li, David F. Mota, John D. Barrow
We consider cosmology in the Einstein-aether theory (the generally covariant theory of gravitation coupled to a dynamical timelike Lorentz-violating vector field) with a linear aet…
Dynamics of Logamediate Inflation
John D. Barrow, N. J. Nunes
A computation of the inflationary observables n_{s} and r is made for `logamediate' inflation where the cosmological scale factor expands as , and is compared…
Cosmology with inhomogeneous magnetic fields
J. D. Barrow, R. Maartens, C. G. Tsagas
We review spacetime dynamics in the presence of large-scale electromagnetic fields and then consider the effects of the magnetic component on perturbations to a spatially homogeneo…
Intermediate inflation in light of the three-year WMAP observations
John D Barrow, Andrew R Liddle, Cédric Pahud
The three-year observations from the Wilkinson Microwave Anisotropy Probe have been hailed as giving the first clear indication of a spectral index n_s<1. We point out that the dat…
Constraints on the Variation of G from Primordial Nucleosynthesis
T. Clifton, J. D. Barrow, R. J. Scherrer
We study here the effect of a varying G on the evolution of the early Universe and, in particular, on primordial nucleosynthesis. This variation of G is modelled using the Brans-Di…