Debanjan Sarkar

Hi, I'm Debanjan. Welcome to my page!

I am a theoretical physicist with a strong focus on leveraging line intensity mapping techniques to explore a wide range of questions in cosmology and astrophysics. My most notable works center on the theoretical modeling of the 21-cm intensity mapping signal. I have developed advanced pipelines to simulate this signal across different cosmic epochs and constructed frameworks to infer underlying physics from observational data. Additionally, I have extended my research to modeling and utilizing other emission lines, including CO, CII, OIII, and Hα, as effective cosmological probes. My interests also encompass quantifying large-scale structures through higher-order statistical measures beyond two-point functions. In this context, I have developed robust computational tools for the analysis and modeling of the bispectrum signal for galaxy surveys. Furthermore, I have applied Machine Learning techniques for signal emulation and inference, enhancing both the efficiency and scope of data analysis in cosmological studies.

I am currently a TSI Fellow at the Trottier Space Institute and the Department of Physics at McGill University, where I work with Dr. Adrian C. Liu. I am also an associate member of the Ciela-Institute for Computation and Astrophysical Data Analysis. Before this, I worked with Dr. Ely D. Kovetz as a postdoctoral researcher, supported by Azrieli Foundation, at Ben-Gurion University of the Negev. I earned my Ph.D. in 2020 from the Indian Institute of Technology Kharagpur, where I conducted research under the mentorship of Prof. Somnath Bharadwaj, focusing on theoretical and computational astrophysics.

My publications can be found in

Arxiv

ORCID

Google Scholar

Inspire HEP

Some of my important works are showcased in the next few pages.