21cm Physics and Cosmology by Somnath Bharadwaj

Explore the fundamentals of 21cm physics and cosmology in this comprehensive lecture by Somnath Bharadwaj, part of the "Cosmology - The Next Decade" program at the International Centre for Theoretical Sciences. Delve into the exciting field of cosmology, focusing on the 21cm hydrogen line and its implications for understanding the early universe. Learn about the latest developments in observational techniques, theoretical models, and the potential for groundbreaking discoveries in dark matter, dark energy, and the reionization history of the universe. Gain insights into upcoming 21cm experiments and their expected impact on our understanding of cosmic evolution. This lecture serves as an excellent introduction to the cutting-edge research and challenges in modern cosmology, preparing you for the complex discussions on large-scale structure, CMB anisotropies, and the cosmic web that will follow in the program.