From the 1 of 14 linked papers with an AI index.
14 papers
A Periodically Interacting Dark Sector: Signatures and Constraints from CMB and Cosmic Expansion Data
Marco Antonio Cardoso Alvarez, Micol Benetti, Leila Graef +1
The paper proposes a cosmological model where the interaction between dark matter and dark energy oscillates in sign over time, representing the back‑reaction of super‑Hubble fluct…
UV Luminosity Functions from HST and JWST: A Possible Resolution to the High-Redshift Galaxy Abundance Puzzle and Implications for Cosmic Strings
Mattéo Blamart, Adrian Liu, Robert Brandenberger +2
Recent observations of high redshift galaxies by the James Webb Space Telescope suggest the presence of a bright population of galaxies that is more abundant than predicted by most…
Multi-Matrix Quantum Mechanics, Collective Fields and Emergent Space
Yue Lei, Suddhasattwa Brahma, Robert Brandenberger
We study quantum mechanics of bosonic multi-matrix Lagragians in the collective field framework, with particular emphasis on three matrix models. We derive the effective Hamiltonia…
Inflationary Reheating to Preheating - A Personal Account
Robert Brandenberger, Jennie Traschen
This is a personal account of the early work that led to what is now known as the ``preheating stage" of inflationary cosmology. The broader applicability of the underlying instabi…
Collective field theory of gauged multi-matrix models: Integrating out off-diagonal strings
Suddhasattwa Brahma, Robert Brandenberger, Keshav Dasgupta +2
We study a two-matrix toy model with a BFSS-like interaction term using the collective field formalism. The main technical simplification is obtained by gauge-fixing first, and int…
Visions in Quantum Gravity
Luca Buoninfante, Benjamin Knorr, K. Sravan Kumar +36
To deepen our understanding of Quantum Gravity and its connections with black holes and cosmology, building a common language and exchanging ideas across different approaches is cr…