Topic: Metastable dark energy models are revisited using DESI DR2 BAO and DESI DR1 full-shape measurements, considering scenarios of exponential decay and decay into dark matter.
Topic: A density-level pivot construction is introduced for the Chevallier-Polarski-Linder parameterization, potentially refining dark energy analysis after DESI DR2.
Topic: Primordial black hole evaporation at high redshift is proposed as a mechanism to boost the optical depth to Thomson scattering, potentially resolving BAO and CMB data discrepancies.
Role/program: PRL Job Vacancies and Fellowships: current cosmology, astrophysics, and physics opportunities page for India.
Role/program: TIFR Astronomy and Astrophysics Careers: current cosmology, astrophysics, and physics opportunities page for India.
Role/program: IUCAA Opportunities: current cosmology, astrophysics, and physics opportunities page for India.
Role/program: HRI Physics Postdoctoral Fellowships: current cosmology, astrophysics, and physics opportunities page for India.