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
Yadav Amit P. S.
(2008)
Fast estimator of primordial non-Gaussianity from temperature and polarization anisotropies in the cosmic microwave background. II. Partial sky coverage and inhomogeneous noise
in ASTROPHYSICAL JOURNAL
Amelino-Camelia G
(2008)
GAUGE: the GrAnd Unification and Gravity Explorer
in Experimental Astronomy
Barrow J
(2008)
Some late-time asymptotics of general scalar-tensor cosmologies
in Classical and Quantum Gravity
Brax P
(2008)
Racetrack inflation with matter fields and cosmic strings
in Journal of Cosmology and Astroparticle Physics
Barrow J
(2008)
Varying-alpha cosmologies with potentials
in Physical Review D
Gibbons G
(2008)
Light bending in Schwarzschild-de Sitter: projective geometry of the optical metric
in Classical and Quantum Gravity
Davis AC
(2008)
Brane inflation and defect formation.
in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Lindblom L
(2008)
Gauge drivers for the generalized harmonic Einstein equations
in Physical Review D
Malik K
(2008)
Different approaches to the second-order Klein-Gordon equation
in Classical and Quantum Gravity
Avelino P
(2008)
Dynamics of domain wall networks with junctions
in Physical Review D
Langlois D
(2008)
Perturbations in generalized multi-field inflation
in Journal of Cosmology and Astroparticle Physics
Bean R
(2008)
Duality cascade in brane inflation
in Journal of Cosmology and Astroparticle Physics
Barrow J
(2008)
Quantum particle production at sudden singularities
in Physical Review D
Brax P
(2008)
f ( R ) gravity and chameleon theories
in Physical Review D
Chow D
(2008)
Equal charge black holes and seven-dimensional gauged supergravity
in Classical and Quantum Gravity
Langlois D
(2008)
Primordial fluctuations and non-Gaussianities in multifield Dirac-Born-Infeld inflation.
in Physical review letters
Bartolo N
(2008)
On the physical significance of infra-red corrections to inflationary observables
in Journal of Cosmology and Astroparticle Physics
Battye R
(2008)
Textures and semi-local strings in supersymmetric hybrid inflation
in Journal of Cosmology and Astroparticle Physics
Brandenberger R
(2008)
Study of structure formation and reheating in the D3/D7 brane inflation model
in Physical Review D
Ita E
(2008)
Finite states in four-dimensional quantum gravity: the isotropic minisuperspace Asktekar-Klein-Gordon model
in Classical and Quantum Gravity
Barrow J
(2008)
Slow decay of magnetic fields in open Friedmann universes
in Physical Review D
Henneaux M
(2008)
Coxeter group structure of cosmological billiards on compact spatial manifolds
in Journal of High Energy Physics
Fergusson J
(2008)
The shape of primordial non-Gaussianity and the CMB bispectrum
Barrow J
(2008)
Varying alpha: New constraints from seasonal variations
in Physical Review D
Avgoustidis A
(2008)
Cosmic string dynamics and evolution in warped spacetime
in Physical Review D