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 (2010) A general sudden cosmological singularity in Classical and Quantum Gravity

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Funakoshi H (2013) A modal approach to the numerical calculation of primordial non-Gaussianities in Journal of Cosmology and Astroparticle Physics

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Seery D (2009) A parton picture of de Sitter space during slow-roll inflation in Journal of Cosmology and Astroparticle Physics

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McAllister L (2012) A statistical approach to multifield inflation: many-field perturbations beyond slow roll in Journal of Cosmology and Astroparticle Physics

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Burrage C (2009) Active Galactic Nuclei Shed Light on Axionlike Particles in Physical Review Letters

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Dias Ó (2010) An instability of higher-dimensional rotating black holes in Journal of High Energy Physics

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Brax P (2011) Anomalous coupling of scalars to gauge fields in Physics Letters B

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Hanson D (2010) Asymmetric beams and CMB statistical anisotropy in Physical Review D

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Wantz O (2010) Axion cosmology revisited in Physical Review D

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Wantz O (2009) Axion Cosmology Revisited

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Herdeiro C (2009) Backreaction of frame dragging in Physical Review D

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Cardoso V (2009) Bifurcation of plasma balls and black holes to Lobed configurations in Journal of High Energy Physics

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Gibbons GW (2010) Black holes in an expanding universe. in Physical review letters

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Barausse E (2011) Black holes in Einstein-aether and Horava-Lifshitz gravity in Physical Review D

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Cremonini S (2009) Black holes in five-dimensional gauged supergravity with higher derivatives in Journal of High Energy Physics

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Farley (2007) Bogoliubov transformations in black-hole evaporation in INTERNATIONAL JOURNAL OF MODERN PHYSICS D

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Davis A (2009) Bogomol'nyi bounds for gravitational cosmic strings in Journal of High Energy Physics

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Davis AC (2008) Brane inflation and defect formation. in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

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Chen B (2007) Bubbling AdS and droplet descriptions of BPS geometries in IIB supergravity in Journal of High Energy Physics

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Lim E (2012) Can we detect hot/cold spots in the CMB with Minkowski Functionals? in Journal of Cosmology and Astroparticle Physics

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Gielen Steffen (2010) Classical general relativity as BF-Plebanski theory with linear constraints in CLASSICAL AND QUANTUM GRAVITY

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Barrow J (2009) Classical stability of sudden and big rip singularities in Physical Review D

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Hanson D (2009) CMB lensing and primordial non-Gaussianity in Physical Review D

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Hanson D (2011) CMB temperature lensing power reconstruction in Physical Review D

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Brax P (2009) Collider constraints on interactions of dark energy with the Standard Model in Journal of High Energy Physics

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Renaux-Petel S (2009) Combined local and equilateral non-Gaussianities from multifield DBI inflation in Journal of Cosmology and Astroparticle Physics

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Ahlqvist P (2011) Conifolds and tunneling in the string landscape in Journal of High Energy Physics

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Avgoustidis A (2009) Consistency among distance measurements: transparency, BAO scale and accelerated expansion in Journal of Cosmology and Astroparticle Physics

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Avgoustidis A (2009) Consistency checks in the ?CDM: transparency, BAO scale and ?-domination in Nuclear Physics B - Proceedings Supplements