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
Fergusson, J. R.; Regan, D. M. & Shellard, E. P. S.
(2010)
Optimal Trispectrum Estimators and WMAP Constraints
Anderson E
(2010)
Relational motivation for conformal operator ordering in quantum cosmology
in Classical and Quantum Gravity
Renaux-Petel S
(2010)
On the squeezed limit of the bispectrum in general single field inflation
in Journal of Cosmology and Astroparticle Physics
Fergusson J
(2010)
The CMB Bispectrum
Fergusson J
(2010)
General CMB and primordial bispectrum estimation: Mode expansion, map making, and measures of F NL
in Physical Review D
Avgoustidis A
(2010)
Constraints on cosmic opacity and beyond the standard model physics from cosmological distance measurements
in Journal of Cosmology and Astroparticle Physics
Bouatta N
(2010)
Preheating in Dirac-Born-Infeld inflation
in Journal of Cosmology and Astroparticle Physics
Upadhye A
(2010)
Constraining chameleon field theories using the GammeV afterglow experiments
in Physical Review D
Avgoustidis A
(2010)
Effect of kinematic constraints on multitension string network evolution
in Physical Review D
Hartle J
(2010)
No-boundary measure in the regime of eternal inflation
in Physical Review D
Regan D
(2010)
Cosmic string power spectrum, bispectrum, and trispectrum
in Physical Review D
Anderson, Edward
(2010)
Relational mechanics of shape and scale
in Int. J. Mod. Phys.
Renaux-Petel S
(2009)
Combined local and equilateral non-Gaussianities from multifield DBI inflation
in Journal of Cosmology and Astroparticle Physics
Grover J
(2009)
Gauduchon-Tod structures, Sim holonomy and De Sitter supergravity
in Journal of High Energy Physics
Gibbons G
(2009)
Deformed general relativity and torsion
in Classical and Quantum Gravity
Rinne O
(2009)
Explicit solution of the linearized Einstein equations in the transverse-traceless gauge for all multipoles
in Classical and Quantum Gravity
Mulryne, David; Seery, David & Wesley, Daniel
(2009)
Non-Gaussianity constrains hybrid inflation
Anderson E
(2009)
Triangleland: II. Quantum mechanics of pure shape
in Classical and Quantum Gravity
Monteiro R
(2009)
Thermodynamic instability of rotating black holes
in Physical Review D
Challinor, A.
(2009)
Cosmic Microwave Background Polarization Analysis
Craps B
(2009)
Multitrace deformation of the Aharony-Bergman-Jafferis-Maldacena theory
in Physical Review D
Brax P
(2009)
Collider constraints on interactions of dark energy with the Standard Model
in Journal of High Energy Physics