3 papers
astro-ph.CO2025
Suggestions of decreasing dark energy from supernova and BAO data: an update
Mark Van Raamsdonk, Chris Waddell
In a previous work 2305.04946, we found that supernova and baryon acoustic oscillation data support the hypothesis that late time cosmic acceleration is caused by the potential ene…
hep-th2024
Holographic motivations and observational evidence for decreasing dark energy
Mark Van Raamsdonk, Chris Waddell
Negative lambda gravitational effective field theories dual to holographic CFTs have potentially realistic cosmological solutions. Generic cosmological solutions of these effective…
astro-ph.CO2024
Suggestions of decreasing dark energy from supernova and BAO data
Mark Van Raamsdonk, Chris Waddell
The potential energy from a time-dependent scalar field provides a possible explanation for the observed cosmic acceleration. In this paper, we investigate how data from supernova…