222 citations · 618 across the 24 of their papers we have counts for
5 papers · 1 filter
Instability of the ACW model, and problems with massive vectors during inflation
Burak Himmetoglu, Carlo R. Contaldi, Marco Peloso
We prove that the anisotropic inflationary background of the Ackerman-Carroll-Wise model, characterized by a fixed-norm vector field, is unstable. We found the instability by expli…
Instability of anisotropic cosmological solutions supported by vector fields
Burak Himmetoglu, Carlo R. Contaldi, Marco Peloso
Models with vector fields acquiring a non-vanishing vacuum expectation value along one spatial direction have been proposed to sustain a prolonged stage of anisotropic accelerated…
Spider Optimization: Probing the Systematics of a Large Scale B-Mode Experiment
C. J. MacTavish, P. A. R. Ade, E. S. Battistelli +31
Spider is a long-duration, balloon-borne polarimeter designed to measure large scale Cosmic Microwave Background (CMB) polarization with very high sensitivity and control of system…
Dark Energy-Dark Matter Interaction from the Abell Cluster A586 and violation of the Equivalence Principle
Morgan Le Delliou, O. Bertolami, F. Gil Pedro
We find that the Abell Cluster A586 exhibits evidence of the interaction between dark matter and dark energy and argue that this interaction suggests evidence of violation of the E…
Distinguishing between Dark Energy Models
Houri Ziaeepour
Recent data and new data analysis methods show that most probably the parameter in the equation of state of the dark energy is smaller than -1 at low redshifts. We briefly revi…