IISER Berhampur | Inspiring Minds, Elevating Science, Shaping the Future

Key Publications

Asymmetric cannibal dark matter: constraints from neutron star, Ujjal Kumar Dey, Sourav Gope, JHEP 04 (2026) 098, arXiv:2509.06892 [hep-ph]

Neutrino decoherence via modified dispersion, Bikash Kumar Acharya, Indra Kumar Banerjee, Ujjal Kumar Dey, JCAP 12 (2025) 015, arXiv:2505.16699 [hep-ph]
Majorana CP violation insights from decaying neutrinos, Sabila Parveen, Soumya Bonthu, Newton Nath, Ujjal Kumar Dey, Poonam Mehta, Nucl.Phys.B 1023 (2026) 117298, arXiv:2410.21428 [hep-ph]
Multimessenger astronomy with quenched superradiance, Indra Kumar Banerjee, Soumya Bonthu, Ujjal Kumar Dey, Phys.Rev.D 112 (2025) 6, 063012, arXiv:2406.13756 [hep-ph]
Primordial Black Holes and Gravitational Waves in the U(1)_{B-L} extended inert doublet model: a first-order phase transition perspective, Indra Kumar Banerjee, Ujjal Kumar Dey, Shaaban Khalil, JHEP 12 (2024) 009, arXiv:2406.12518 [hep-ph]
Cosmic neutrino background: a minireview, Ujjal Kumar Dey, Eur.Phys.J.ST 233 (2024) 2149-2161
Spinning primordial black holes from first order phase transition, Indra Kumar Banerjee, Ujjal Kumar Dey, JHEP 07 (2024) 006, JHEP 08 (2024) 054 (erratum), arXiv:2311.03406 [gr-qc]
Probing the origin of primordial black holes through novel gravitational wave spectrum, Indra Kumar Banerjee, Ujjal Kumar Dey, JCAP 07 (2023) 024, arXiv:2305.07569 [gr-qc]
PTOLEMY's test of generalized neutrino interactions: unveiling challenges and constraints, Indra Kumar Banerjee, Ujjal Kumar Dey, Newton Nath, Saadat Salman Shariff, JCAP 04 (2024) 002, arXiv:2304.02505 [hep-ph]

Research Projects

Through a Glass Darkly (a study on the dark sector) [Start-up Research Grant from SERB] (Completed)
News from ν’s: Unlocking New Physics from Less-explored Aspects of Neutrinos [Core Research Grant from SERB] (Ongoing)

Research Interests

Research Group

PhD Scholars: Bikash Kumar Acharya (UGC-JRF), Anna John (INSPIRE), Santu Kumar Manna, Biswarup Das
Postdocs: Sambo Sarkar
Past members:- PhD Scholars: Indra Kumar Banerjee (PMRF Scholar, Completion: July 2025); Postdocs: Sourav Gope, Kasinath Das, Nirakar Sahoo; MS Project Students: Anmol Kumar, Suraj Kumar Panigrahi, Gayatree Pal, Shamik Niyogi, Amrita Mukherjee, Bonthu Soumya, Lingaraj Rout, Pratyush Tripathy, Arindam Bhunia, Shubham Barua, Anshuman Nayak

Academic Background

Professional Experience

Assistant Professor, Department of Physical Sciences, IISER Berhampur (Oct 2019 - present)
Post-Doctoral Fellow, (Young Scientist Training Program) Asia Pacific Center for Theoretical Physics (APCTP), Pohang, South Korea (Nov 2018 - Sep 2019)
Post Doctoral Fellow, Department of Physics, National Taiwan University, Taipei, Taiwan (May 2018 - Sep 2018)
Post Doctoral Fellow, (SERB-DST NPDF Fellowship), Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur, India (Oct 2016 - Apr 2018)
Post Doctoral Fellow, Physical Research Laboratory, Ahmedabad, India (Oct 2014 - Oct 2016)

Awards and Memberships