767 citations · 17k across the 373 of their papers we have counts for
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Cosmological Perturbations Across an S-brane
Robert H. Brandenberger, Costas Kounnas, Herve Partouche +2
Space-filling S-branes can mediate a transition between a contracting and an expanding universe in the Einstein frame. Following up on previous work that uncovered such bouncing so…
Angular Power Spectrum of B-mode Polarization from Cosmic String Wakes
Robert Brandenberger, Nick Park, Grant Salton
Cosmic string wakes produce direct B-mode polarization at leading order in cosmological perturbation theory, as worked out in a previous publication \cite{BDH} in the case of a sin…
Recursive Stochastic Effects in Valley Hybrid Inflation
Laurence Perreault Levasseur, Vincent Vennin, Robert Brandenberger
Hybrid Inflation is a two-field model where inflation ends by a tachyonic instability, the duration of which is determined by stochastic effects and has important observational imp…
Two Field Matter Bounce Cosmology
Yi-Fu Cai, Evan McDonough, Francis Duplessis +1
We re-examine the non-singular Matter Bounce scenario first developed in [arXiv:1206.2382], which starts with a matter-dominated period of contraction and transitions into an Ekpyr…
Cosmological perturbations from statistical thermal fluctuations
Tirthabir Biswas, Robert Brandenberger, Tomi Koivisto +1
Cosmological perturbations due to statistical thermal fluctuations in a single fluid characterized by an arbitrary equation of state are computed. Formulas to predict the scalar an…
Note on Structure Formation from Cosmic String Wakes
Francis Duplessis, Robert Brandenberger
The search for cosmic strings has been of renewed interest with the advent of precision cosmology. In this note we give a quantitative description of the nonlinear matter density f…
Cosmological Backreaction for a Test Field Observer in a Chaotic Inflationary Model
Giovanni Marozzi, Gian Paolo Vacca, Robert H. Brandenberger
In an inhomogeneous universe, an observer associated with a particular matter field does not necessarily measure the same cosmological evolution as an observer in a homogeneous and…
Anisotropy in a Nonsingular Bounce
Yi-Fu Cai, Robert Brandenberger, Patrick Peter
Following recent claims relative to the question of large anisotropy production in regular bouncing scenarios, we study the evolution of such anisotropies in a model where an Ekpyr…
Searching for Cosmic Strings in New Observational Windows
Robert H. Brandenberger
Cosmic strings are predicted in many models beyond the Standard Model of particle physics. In models which admit strings, a network of strings will inevitably be formed in a phase…