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Neutrino oscillations and superluminal propagation, in OPERA or otherwise
Joao Magueijo
We digress on the implications of recent claims of superluminal neutrino propagation. No matter how we turn it around such behaviour is very odd and sits uncomfortably even within…
Chirality of tensor perturbations for complex values of the Immirzi parameter
Laura Bethke, Joao Magueijo
In this paper we generalise previous work on tensor perturbations in a de Sitter background in terms of Ashtekar variables to cover all complex values of the Immirzi parameter gamm…
The case for testing MOND using LISA Pathfinder
Joao Magueijo, Ali Mozaffari
We quantify the potential for testing MOdified Newtonian Dynamics (MOND) with LISA Pathfinder (LPF), should a saddle point flyby be incorporated into the mission. We forecast the e…
Inflationary tensor fluctuations, as viewed by Ashtekar variables and their imaginary friends
Laura Bethke, Joao Magueijo
We investigate tensor modes in inflationary scenarios from the point of view of Ashtekar variables and their generalizations labelled by Immirzi parameter γ, which we'll assume ima…
Non-Gaussianity in single field models without slow-roll
Johannes Noller, Joao Magueijo
We investigate non-Gaussianity in general single field models without assuming slow-roll conditions or the exact scale-invariance of the scalar power spectrum. The models considere…