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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Gibbons G (2010) Deforming the Maxwell-Sim algebra in Physical Review D

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

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Gibbons GW (2009) Naturalness of CP violation in the standard model. in Physical review letters

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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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Godazgar H (2011) Real fermionic symmetry in type II supergravity in Journal of High Energy Physics

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Godazgar M (2010) Spinor classification of the Weyl tensor in five dimensions in Classical and Quantum Gravity

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Grover J (2009) Gauduchon-Tod structures, Sim holonomy and De Sitter supergravity in Journal of High Energy Physics

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Grover J (2009) HKT geometry and de Sitter supergravity in Nuclear Physics B

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Hamber H (2010) Gravitational Wilson loop in discrete quantum gravity in Physical Review D

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

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Hanson D (2010) Weak lensing of the CMB in General Relativity and Gravitation

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Hanson D (2010) Asymmetric beams and CMB statistical anisotropy 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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Hartle J (2010) No-boundary measure in the regime of eternal inflation in Physical Review D

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Hartle J (2011) Local observation in eternal inflation. in Physical review letters

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Henneaux M (2008) Coxeter group structure of cosmological billiards on compact spatial manifolds in Journal of High Energy Physics

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

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Hikage C (2008) Limits on primordial non-Gaussianity from Minkowski Functionals of the WMAP temperature anisotropies in Monthly Notices of the Royal Astronomical Society

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Hindmarsh, Mark; Ringeval, Christophe & Suyama, Teruaki (2009) The CMB temperature bispectrum induced by cosmic strings

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Holzegel Gustav (2007) Ricci flows connecting Taub-Bolt and Taub-NUT metrics in CLASSICAL AND QUANTUM GRAVITY

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Houri T (2010) Generalized hidden symmetries and the Kerr-Sen black hole in Journal of High Energy Physics

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Houri T (2010) Symmetries of the Dirac operator with skew-symmetric torsion in Classical and Quantum Gravity

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Ita E (2008) Finite states in four-dimensional quantized gravity in Classical and Quantum Gravity

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Jacobson T (2010) Destroying black holes with test bodies in Journal of Physics: Conference Series

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Jacobson T (2009) Overspinning a black hole with a test body. in Physical review letters

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Jacobson T (2010) Spinning black holes as particle accelerators. in Physical review letters

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Komatsu, E.; Afshordi, N.; Bartolo, N.; Baumann, D.; Bond, J.R. & Others (2009) Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe

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Kubiznák D (2009) On the supersymmetric limit of Kerr-NUT-AdS metrics in Physics Letters B

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Kubiznák D (2009) Generalized Killing-Yano equations in D = 5 gauged supergravity in Physics Letters B

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Kubiznák D (2011) Hidden symmetry in the presence of fluxes in Nuclear Physics B

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Langlois D (2009) Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints in Journal of Cosmology and Astroparticle Physics

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Langlois D (2008) Perturbations in generalized multi-field inflation in Journal of Cosmology and Astroparticle Physics