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.

Publications

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Barrow J (2008) Varying-alpha cosmologies with potentials in Physical Review D

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Barrow J (2008) Quantum particle production at sudden singularities in Physical Review D

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Bartolo N (2008) On the physical significance of infra-red corrections to inflationary observables in Journal of Cosmology and Astroparticle Physics

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Battefeld D (2008) Staggered multi-field inflation in Journal of Cosmology and Astroparticle Physics

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Battefeld D (2008) Magnetogenesis from cosmic string loops in Journal of Cosmology and Astroparticle Physics

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Battye R (2008) Textures and semi-local strings in supersymmetric hybrid inflation in Journal of Cosmology and Astroparticle Physics

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Bean R (2008) Duality cascade in brane inflation in Journal of Cosmology and Astroparticle Physics

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Berman D (2011) SO ( 5 , 5 ) duality in M-theory and generalized geometry in Physics Letters B