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
Li B
(2011)
f ( T ) gravity and local Lorentz invariance
in Physical Review D
Brax P
(2008)
f ( R ) gravity and chameleon theories
in Physical Review D
Rinne O
(2009)
Explicit solution of the linearized Einstein equations in the transverse-traceless gauge for all multipoles
in Classical and Quantum Gravity
Chow D
(2008)
Equal charge black holes and seven-dimensional gauged supergravity
in Classical and Quantum Gravity
Li B
(2009)
Environment-dependent dark sector
in Physical Review D
Davis, A.C. & Ribeiro, Raquel H.
(2009)
Enhanced (p)reheating in DBI Inflation
Fergusson J
(2014)
Efficient optimal non-Gaussian CMB estimators with polarization
in Physical Review D
Fergusson J
(2014)
Efficient optimal non-Gaussian CMB estimators with polarisation
Sefusatti E
(2012)
Effects and detectability of quasi-single field inflation in the large-scale structure and cosmic microwave background
in Journal of Cosmology and Astroparticle Physics
Avgoustidis A
(2010)
Effect of kinematic constraints on multitension string network evolution
in Physical Review D
Davis A
(2009)
Effect of a chameleon scalar field on the cosmic microwave background
in Physical Review D
Joukovskaya L
(2009)
Dynamics with infinitely many time derivatives in Friedmann-Robertson-Walker background and rolling tachyons
in Journal of High Energy Physics
Vitagliano V
(2010)
Dynamics of generalized Palatini theories of gravity
in Physical Review D
Avelino P
(2008)
Dynamics of domain wall networks with junctions
in Physical Review D
Aref'eva I
(2008)
Dynamics in nonlocal linear models in the Friedmann-Robertson-Walker metric
in Journal of Physics A: Mathematical and Theoretical
Bean R
(2008)
Duality cascade in brane inflation
in Journal of Cosmology and Astroparticle Physics
Li B
(2009)
Does bulk viscosity create a viable unified dark matter model?
in Physical Review D
Rudjord Ø
(2010)
DIRECTIONAL VARIATIONS OF THE NON-GAUSSIANITY PARAMETER f NL
in The Astrophysical Journal
Brax P
(2010)
Dilaton and modified gravity
in Physical Review D
Malik K
(2008)
Different approaches to the second-order Klein-Gordon equation
in Classical and Quantum Gravity
Burrage C
(2009)
Detecting chameleons: The astronomical polarization produced by chameleonlike scalar fields
in Physical Review D
Li B
(2008)
Detecting a Lorentz-violating field in cosmology
in Physical Review D
Jacobson T
(2010)
Destroying black holes with test bodies
in Journal of Physics: Conference Series
Gibbons G
(2010)
Deforming the Maxwell-Sim algebra
in Physical Review D