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astro-ph.CO2025
Quintessential Implications of the presence of AdS in the Dark Energy sector
Purba Mukherjee, Dharmendra Kumar, Anjan A Sen
We explore the implications for an Anti-de Sitter (AdS) vacuum, equivalently a negative cosmological constant (nCC), in the dark energy (DE) sector using current cosmological obser…
astro-ph.CO2024
Exploring Alternative Cosmologies with the LSST: Simulated Forecasts and Current Observational Constraints
Dharmendra Kumar, Ayan Mitra, Shahnawaz A. Adil +1
In recent years, the Lambda Cold Dark Matter (LCDM) model, which has been pivotal in cosmological studies, has faced significant challenges due to emerging observational and theore…