Faculty in Physics
The Institute of Mathematical Sciences, Chennai, India
Dhiraj Kumar Hazra
Faculty member in Physics at IMSc, Chennai, and associate of INAF–OAS Bologna. I work on the origin and evolution of cosmological perturbations.

In a nutshell
Observational data, numerical solutions of theory, and the comparison between the two are the three coordinates of my work.
My interests include inflation, CMB and large-scale-structure data analysis, numerical simulations and theory of structure formation, departures from ΛCDM, reionization, dark energy and cosmological degeneracies. I also develop statistical techniques that reconstruct theory from observations without first fixing a model.
Trajectory
The Institute of Mathematical Sciences, Chennai, India
INAF–Osservatorio di Astrofisica e Scienza dello Spazio, Bologna, Italy
Istituto Nazionale di Fisica Nucleare, Bologna · mentor: Fabio Finelli
Laboratoire APC, Université Paris Diderot · mentor: George F. Smoot
Asia Pacific Center for Theoretical Physics, Pohang · mentor: Arman Shafieloo
Harish-Chandra Research Institute / HBNI · supervisor: L. Sriramkumar
Jadavpur University, Kolkata
Eastern Railway Boys’ Higher Secondary School, Asansol
Collective observations
I am a member of the CMB Bharat consortium and led the Cosmological Parameters working group for its first ISRO Announcement of Opportunity proposal, submitted 16 April 2018. The proposal describes a next-generation space mission for high-sensitivity CMB-polarization and spectral-distortion measurements.
I am a member of the Euclid Consortium’s Theoretical Working Group. Euclid, an ESA mission, maps the geometry of the Universe through the shapes and spectra of galaxies and clusters.
Support & recognition
Principal Investigator
EPOCH: Exploring Primordial Origins in Cosmic Hierarchies
Joint collaborator · PI L. Sriramkumar
Testing flavors of the early Universe beyond vanilla models with cosmological observations
Principal Investigator
RELIC: Reconstructing Early and Late events In Cosmology
Principal Investigator
Nine-month research stay at Harvard University, Cambridge, Massachusetts
Award
Indian Association for General Relativity and Gravitation
Doctoral archive
Doctor of Philosophy, Homi Bhabha National Institute, 2012. Integrated MSc–PhD at Harish-Chandra Research Institute; supervised by Professor L. Sriramkumar.
Read the thesis ↗Contact coordinates
PostThe Institute of Mathematical Sciences
IV Cross Road, CIT Campus, Taramani
Chennai, India
Phone+91-44-2254-3310
Emaildhiraj [at] imsc [dot] res [dot] in
dhirajhazra [at] gmail [dot] com