837 citations · 6.6k across the 95 of their papers we have counts for
37 papers · 1 filter
Scalar Field Cosmologies Hidden Within the Nonlinear Schrodinger Equation
James E. Lidsey
The nonlinear, cubic Schrodinger (NLS) equation has numerous physical applications, but in general is very difficult to solve. Nonetheless, under certain circumstances parameters q…
Cosmological scaling solutions in generalised Gauss-Bonnet gravity theories
Kotub Uddin, James E. Lidsey, Reza Tavakol
The conditions for the existence and stability of cosmological power-law scaling solutions are established when the Einstein-Hilbert action is modified by the inclusion of a functi…
Thermodynamics of Anomaly-Driven Cosmology
James E. Lidsey
The Friedmann equations of general relativity can be derived from the first law of thermodynamics when the entropy of the apparent horizon of a spatially isotropic universe is give…
Cosmological perturbations in Palatini modified gravity
Kotub Uddin, James E Lidsey, Reza Tavakol
Two approaches to the study of cosmological density perturbations in modified theories of Palatini gravity have recently been discussed. These utilise, respectively, a generalisati…
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…
Inflationary Cosmology and Oscillating Universes in Loop Quantum Cosmology
D. J. Mulryne, N. J. Nunes, R. Tavakol +1
We study oscillatory universes within the context of Loop Quantum Cosmology. We make a comparative study of flat and positively curved universes sourced by scalar fields with eithe…