753 citations
- Centre National de la Recherche ScientifiqueFR131 papers
- European Southern ObservatoryCL113 papers
- University of EdinburghGB111 papers
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25 papers · 1 filter
Monte Carlo Hamiltonian from Stochastic Basis
C. Q. Huang, H. Kröger, X. Q. Luo +1
In order to extend the recently proposed Monte Carlo Hamiltonian to many-body systems, we suggest to concept of a stochastic basis. We apply it to the chain of coupled anha…
Qualitative Analysis of Isotropic Curvature String Cosmologies
Andrew P. Billyard, Alan A. Coley, James E. Lidsey
A complete qualitative study of the dynamics of string cosmologies is presented for the class of isotopic curvature universes. These models are of Bianchi types I, V and IX and red…
The Dynamics of Multi-Scalar Field Cosmological Models and Assisted Inflation
A. A. Coley, R. J. van den Hoogen
We investigate the dynamical properties of a class of spatially homogeneous and isotropic cosmological models containing a barotropic perfect fluid and multiple scalar fields with…
Undermining the Cosmological Principle: Almost Isotropic Observations in Inhomogeneous Cosmologies
R. K. Barrett, C. A. Clarkson
We challenge the widely held belief that the cosmological principle is an obvious consequence of the observed isotropy of the cosmic microwave background radiation, combined with t…
Dynamical Systems in Cosmology
A. A. Coley
Dynamical systems theory is especially well-suited for determining the possible asymptotic states (at both early and late times) of cosmological models, particularly when the gover…
Qualitative properties of scalar-tensor theories of Gravity
A. A. Coley
The qualitative properties of spatially homogeneous stiff perfect fluid and minimally coupled massless scalar field models within general relativity are discussed. Consequently, by…