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Correspondence between Loop-inspired and Braneworld Cosmology
Edmund J. Copeland, James E. Lidsey, Shuntaro Mizuno
Braneworld scenarios are motivated by string/M-theory and can be characterized by the way in which they modify the conventional Friedmann equations of Einstein gravity. An alternat…
The Isometries of Low-Energy Heterotic M-Theory
E. J. Copeland, J. Ellison, A. Lukas +1
We study the effective D=4, N=1 supergravity description of five-dimensional heterotic M-theory in the presence of an M5 brane, and derive the Killing vectors and isometry group fo…
Moduli evolution in the presence of flux compactifications
T. Barreiro, B. de Carlos, E. J. Copeland +1
We study the cosmological evolution of the volume moduli in a class of recently proposed Inflationary Universe models arising out of Type IIB string theory, where a number of the m…
On the evolution of cosmic-superstring networks
Edmund J. Copeland, P. M. Saffin
We model the behaviour of a network of interacting (p,q) strings from IIB string theory by considering a field theory containing multiple species of string, allowing us to study th…
Reheating and gravitino production in braneworld inflation
Edmund J. Copeland, Osamu Seto
We consider the constraints that can be imposed on a wide class of Inflation models in modified gravity scenarios in which the Friedmann equation is modified by the inclusion of $ρ…