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- University of WaterlooCA112 papers
- Western UniversityCA31 papers
- University of VictoriaCA25 papers
- McMaster UniversityCA22 papers
- Centre National de la Recherche ScientifiqueFR19 papers
- Imperial College LondonGB19 papers
- University of California, Santa BarbaraUS17 papers
- University of CambridgeGB17 papers
- École Normale Supérieure de LyonFR16 papers
- California Institute of TechnologyUS15 papers
- Laboratoire de Physique de l'ENS de LyonFR13 papers
- Massachusetts Institute of TechnologyUS12 papers
9 papers · 2 filters
Holography and the scale-invariance of density fluctuations
Joao Magueijo, Lee Smolin, Carlo R. Contaldi
We study a scenario for the very early universe in which there is a fast phase transition from a non-geometric, high temperature phase to a low temperature, geometric phase describ…
The Axis of Evil revisited
Kate Land, Joao Magueijo
In light of the three-year data release from WMAP we re-examine the evidence for the ``Axis of Evil'' (AOE). We discover that previous statistics are not robust with respect to the…
The cosmological behavior of Bekenstein's modified theory of gravity
F. Bourliot, P. G. Ferreira, D. F. Mota +1
We study the background cosmology governed by the Tensor-Vector-Scalar theory of gravity proposed by Bekenstein. We consider a broad family of potentials that lead to modified grav…
SNLS data are consistent with acceleration at z=3
Luca Amendola, M. Gasperini, Federico Piazza
We point out that the Type Ia supernovae in the SNLS dataset are consistent with an early beginning of the cosmic acceleration if dark energy interacts strongly with dark matter. W…
Shining light through the Sun
Malcolm Fairbairn, Timur Rashba, Sergey Troitsky
It is shown that the Sun can become partially transparent to high energy photons in the presence of a pseudo-scalar. In particular, if the axion interpretation of the PVLAS result…
Cosmology and Astrophysical Constraints of Gauss-Bonnet Dark Energy
Tomi Koivisto, David F. Mota
Cosmological consequences of a string-motivated dark energy scenario featuring a scalar field coupled to the Gauss-Bonnet invariant are investigated. We study the evolution of the…