4 papers
BFSS Matrix Model Cosmology: Progress and Challenges
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
We review a proposal to obtain an emergent metric space-time and an emergent early universe cosmology from the BFSS matrix model. Some challenges and directions for future research…
String Gases and the Swampland
Samuel Laliberte, Robert Brandenberger
In this paper, we study some aspects of moduli stabilization using string gases in the context of the Swampland. In the framework which we derive, the matter Lagrangian for string…
Ionization from Cosmic Strings at Cosmic Dawn
Samuel Laliberte, Robert Brandenberger
Cosmic strings produce charged particles which, by emitting electromagnetic radiation, partially ionize neutral hydrogen during the dark ages. Corrections to the ionization fractio…
Cosmic String Wake Detection using 3D Ridgelet Transformations
Samuel Laliberte, Robert Brandenberger, Disrael Camargo Neves da Cunha
Three-dimensional ridgelet statistics are used to search for the signals of cosmic string wakes in the distribution of dark matter. We compare N-body simulations of the dark matter…