Fundamental Physics and Observational Cosmology
Lead Research Organisation:
University of Cambridge
Department Name: Applied Maths and Theoretical Physics
Abstract
We aim to advance the confrontation between observational cosmology and fundamental physics by developing testable signatures of early universe theories which are of direct relevance to STFC-supported satellite and other experiments, such as Planck and Clover. This work entails making detailed quantitative observational predictions which can be used to distinguish between different inflation models, as well as those involving cosmic superstrings and textures. In particular, we wish to study cosmologies emerging from higher dimensional models in fundamental theory, and discover ways in which to differentiate these from conventional four-dimensional models. We will also use data from the late universe to develop probes of the cosmological constant, dark energy and the variation of the fundamental constants of nature. In addition, we will embark on a new project in gravitational physics, studying the existence, formation and consequences of black holes. We will consider the distinctive signatures of extra dimensions which the experimental study of black holes may be able to uncover.
Organisations
Publications
Kubiznák D
(2009)
On the supersymmetric limit of Kerr-NUT-AdS metrics
in Physics Letters B
Avgoustidis, A.; Jimenez, R.; Alvarez-Gaume, L. & Vazquez-Mozo, M. A.
(2009)
Powering AGNs with super-critical black holes
Grover J
(2009)
HKT geometry and de Sitter supergravity
in Nuclear Physics B
Brax P
(2009)
Decoupling dark energy from matter
in Journal of Cosmology and Astroparticle Physics
Li B
(2009)
Does bulk viscosity create a viable unified dark matter model?
in Physical Review D
Renaux-Petel S
(2009)
Nonlinear perturbations of cosmological scalar fields with non-standard kinetic terms
in Journal of Cosmology and Astroparticle Physics
Dias Ó
(2009)
Kerr-CFT and gravitational perturbations
in Journal of High Energy Physics
Brax, Philippe; Van De Bruck, Carsten; Davis, Anne-Christine & Shaw, Douglas
(2009)
Laboratory Tests of Chameleon Models
Langlois D
(2009)
Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints
in Journal of Cosmology and Astroparticle Physics
Godazgar M
(2009)
Algebraically special axisymmetric solutions of the higher-dimensional vacuum Einstein equation
in Classical and Quantum Gravity
Ita E
(2008)
Finite states in four-dimensional quantum gravity: the isotropic minisuperspace Asktekar-Klein-Gordon model
in Classical and Quantum Gravity
Liguori M
(2008)
Impact of uncertainties in the cosmological parameters on the measurement of primordial non-Gaussianity
in Physical Review D
Avgoustidis A
(2008)
Cosmic string dynamics and evolution in warped spacetime
in Physical Review D
Marvel K
(2008)
Tunneling with negative tension
in Journal of High Energy Physics
Barrow J
(2008)
Varying alpha: New constraints from seasonal variations
in Physical Review D
Barrow J
(2008)
Varying-alpha cosmologies with potentials
in Physical Review D
Barrow J
(2008)
Quantum particle production at sudden singularities
in Physical Review D
Davis AC
(2008)
Brane inflation and defect formation.
in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Henneaux M
(2008)
Coxeter group structure of cosmological billiards on compact spatial manifolds
in Journal of High Energy Physics
Barrow J
(2008)
Some late-time asymptotics of general scalar-tensor cosmologies
in Classical and Quantum Gravity
Chen X
(2008)
Generation and characterization of large non-Gaussianities in single field inflation
in Journal of Cosmology and Astroparticle Physics
Seery D
(2008)
Non-Gaussianity of inflationary field perturbations from the field equation
in Journal of Cosmology and Astroparticle Physics
Hikage C
(2008)
Limits on primordial non-Gaussianity from Minkowski Functionals of the WMAP temperature anisotropies
in Monthly Notices of the Royal Astronomical Society
Avgoustidis A
(2008)
Velocity-dependent models for non-Abelian/entangled string networks
in Physical Review D
Barrow J
(2008)
Slow decay of magnetic fields in open Friedmann universes
in Physical Review D