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
Bartolo N
(2008)
On the physical significance of infra-red corrections to inflationary observables
in Journal of Cosmology and Astroparticle Physics
Davis A
(2008)
Cusps on cosmic superstrings with junctions
in Journal of Cosmology and Astroparticle Physics
Battefeld D
(2008)
Staggered multi-field inflation
in Journal of Cosmology and Astroparticle Physics
Aref'eva I
(2008)
Dynamics in nonlocal linear models in the Friedmann-Robertson-Walker metric
in Journal of Physics A: Mathematical and Theoretical
Ita E
(2008)
Finite states in four-dimensional quantum gravity: the isotropic minisuperspace Asktekar-Klein-Gordon model
in Classical and Quantum Gravity
Chen X
(2008)
Fine-tuning in DBI inflationary mechanism
in Journal of Cosmology and Astroparticle Physics
Langlois D
(2008)
Primordial fluctuations and non-Gaussianities in multifield Dirac-Born-Infeld inflation.
in Physical review letters
Germani C
(2008)
Matching WMAP 3-year results with the cosmological Slingshot primordial spectrum
in General Relativity and Gravitation
Barrow J
(2008)
Varying alpha: New constraints from seasonal variations
in Physical Review D
TSAGAS C
(2008)
Relativistic cosmology and large-scale structure
in Physics Reports
Ita E
(2008)
Finite states in four-dimensional quantized gravity
in Classical and Quantum Gravity
Avgoustidis A
(2008)
Cosmic string dynamics and evolution in warped spacetime
in Physical Review D
Avgoustidis A
(2008)
Velocity-dependent models for non-Abelian/entangled string networks
in Physical Review D
Henneaux M
(2008)
Coxeter group structure of cosmological billiards on compact spatial manifolds
in Journal of High Energy Physics
Avgoustidis A
(2007)
Cosmic String Evolution in Brane Inflation
in Journal of Physics: Conference Series
Chen B
(2007)
Bubbling AdS and droplet descriptions of BPS geometries in IIB supergravity
in Journal of High Energy Physics
Farley
(2007)
Bogoliubov transformations in black-hole evaporation
in INTERNATIONAL JOURNAL OF MODERN PHYSICS D
De Troia G.
(2007)
Searching for non-Gaussian signals in the BOOMERANG 2003 CMB maps
in ASTROPHYSICAL JOURNAL
Holzegel Gustav
(2007)
Ricci flows connecting Taub-Bolt and Taub-NUT metrics
in CLASSICAL AND QUANTUM GRAVITY
Burrage C
(2007)
P-term potentials from 4-D supergravity
in Journal of High Energy Physics
Brax P
(2007)
Warping and F-term uplifting
in Journal of High Energy Physics
Burrage C
(2007)
P-term strings and semi-local strings
in Journal of High Energy Physics