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
Marvel K
(2008)
Tunneling with negative tension
in Journal of High Energy Physics
Davis A
(2008)
Cusps on cosmic superstrings with junctions
in Journal of Cosmology and Astroparticle Physics
Barrow J
(2008)
Quantum particle production at sudden singularities
in Physical Review D
Anderson E
(2008)
An interpretation of variational principles for gauge theories: a cyclic coordinate alternative to ADM split
in Classical and Quantum Gravity
Avgoustidis A
(2008)
Cosmic string dynamics and evolution in warped spacetime
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
Avgoustidis A
(2008)
Velocity-dependent models for non-Abelian/entangled string networks
in Physical Review D
Langlois D
(2008)
Primordial perturbations and non-Gaussianities in DBI and general multifield inflation
in Physical Review D
Barrow J
(2008)
Varying-alpha cosmologies with potentials
in Physical Review D
Brax P
(2008)
f ( R ) gravity and chameleon theories
in Physical Review D
Seery D
(2008)
One-loop corrections to the curvature perturbation from inflation
in Journal of Cosmology and Astroparticle Physics
Baumann D
(2009)
Probing Inflation with CMB Polarization
Stewart J
(2009)
The Euler-Poisson-Darboux equation for relativists
in General Relativity and Gravitation
Moncrief V
(2009)
Regularity of the Einstein equations at future null infinity
in Classical and Quantum Gravity
Burrage C
(2009)
Active galactic nuclei shed light on axionlike particles.
in Physical review letters
Donzelli S
(2009)
IMPACT OF THE 1/ f NOISE AND THE ASYMMETRIC BEAM ON NON-GAUSSIANITY SEARCHES WITH PLANCK
in The Astrophysical Journal
Dodelson, Scott; Easther, Richard; Hanany, Shaul; McAllister, Liam; Meyer, Stephan & Others
(2009)
The Origin of the Universe as Revealed Through the Polarization of the Cosmic Microwave Background
Langlois D
(2009)
Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints
in Journal of Cosmology and Astroparticle Physics
Gibbons G
(2009)
Deformed general relativity and torsion
in Classical and Quantum Gravity
Joukovskaya L
(2009)
Dynamics with infinitely many time derivatives in Friedmann-Robertson-Walker background and rolling tachyons
in Journal of High Energy Physics
Monteiro R
(2009)
Negative modes and the thermodynamics of Reissner-Nordström black holes
in Physical Review D
Barrow J
(2009)
Classical stability of sudden and big rip singularities
in Physical Review D
Aref'eva I
(2009)
Null energy condition violation and classical stability in the Bianchi I metric
in Physical Review D