918 citations · 10.5k across the 126 of their papers we have counts for
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The Robustness of Quintessence
Philippe Brax, Jerome Martin
Recent observations seem to suggest that our Universe is accelerating implying that it is dominated by a fluid whose equation of state is negative. Quintessence is a possible expla…
Cosmological Implications of the Supergravity Tracking Potential
Philippe Brax, Jerome Martin
It is demonstrated that any realistic model of quintessence should be based on Supergravity since, when the scalar field is on tracks today, . This improves th…
The precision of slow-roll predictions for the CMBR anisotropies
Jerome Martin, Dominik Schwarz
Inflationary predictions for the anisotropy of the cosmic microwave background radiation (CMBR) are often based on the slow-roll approximation. We study the precision with which th…
Cosmic microwave background bispectrum and slow roll inflation
Alejandro Gangui, Jerome Martin
Recent tentative findings of non-Gaussian structure in the COBE-DMR dataset have triggered renewed attention to candidate models from which such intrinsic signature could arise. In…
Quantum Cosmology and Open Universes
D. H. Coule, Jerome Martin
Quantum creation of Universes with compact spacelike sections that have curvature either closed, flat or open, i.e. are studied. In the flat and open cases, the supe…
Quintessence and Supergravity
Philippe Brax, Jerome Martin
In the context of quintessence, the concept of tracking solutions allows to address the fine-tuning and coincidence problems. When the field is on tracks today, one has $Q\approx m…
Non-Vacuum Initial States for Cosmological Perturbations of Quantum-Mechanical Origin
Jerome Martin, Alain Riazuelo, Mairi Sakellariadou
In the context of inflation, non-vacuum initial states for cosmological perturbations that possess a built in scale are studied. It is demonstrated that this assumption leads to a…