Specialization
Theoretical Particle Physics, Effective Field Theory, Quantum Field Theory, Representation Theory, Thermal Field Theory, Grand Unified Theories, and Beyond-Standard-Model Phenomenology.
Education
PhD in Particle Physics
Harish-Chandra Research Institute, 2006–2011
Supervisor: Professor Amitava RaychaudhuriThesis: Aspects of Grand Unified Theory, gauge-coupling unification with dimension-five operators, and neutrino masses in an SO(10) model.MSc in Physics
University of Calcutta, 2004–2006
First ClassBSc (Honours) in Physics
University of Burdwan, 2001–2004
First ClassTeaching Area
Invited Lecture Series
- Effective Field Theory, School for Advanced Topics in Particle Physics, ICTS Bengaluru, April 2024.
- Effective Field Theory, RKMVERI, Belur Math, July 2024.
- Grand Unified Theory, six-lecture series, IACS Kolkata, May-June 2018.
- Particle Physics and Group Theory, twelve-lecture series, IIT Guwahati, June-July 2017.
- Guest lectures on Group Theory at the SERC Preliminary School, IISER Bhopal and Tezpur University.
Selected Publications
- 2025
Gauge invariant effective potential
D. Balui, J. Chakrabortty, D. Dey, and S. Mohanty · Physical Review D 111, 085032
- 2025
One Loop Thermal Effective Action
J. Chakrabortty and S. Mohanty · Nuclear Physics B 1020, 117165
- 2024
Renormalization of scalar and fermion interacting field theory for arbitrary loop: Heat-Kernel approach
U. Banerjee, J. Chakrabortty, and K. Ramkumar · European Physical Journal Plus 139, 714
- 2024
One-loop effective action up to any mass-dimension for non-degenerate scalars and fermions, including light-heavy mixing
U. Banerjee, J. Chakrabortty, S. U. Rahaman, and K. Ramkumar · European Physical Journal Plus 139, 169
- 2024
One-loop effective action up to dimension eight: Integrating out heavy fermion(s)
J. Chakrabortty, S. U. Rahaman, and K. Ramkumar · Nuclear Physics B 1000, 116488
- 2024
EFT, decoupling, Higgs boson mixing, and higher dimensional operators
U. Banerjee, J. Chakrabortty, C. Englert, W. Naskar, S. U. Rahaman, and M. Spannowsky · Physical Review D 109, 055035
- 2021
EFT diagrammatica: UV roots of the CP-conserving SMEFT
S. Das Bakshi, J. Chakrabortty, S. Prakash, S. U. Rahaman, and M. Spannowsky · JHEP 06, 033
- 2019
CoDEx: Wilson coefficient calculator connecting SMEFT to UV theory
S. Das Bakshi, J. Chakrabortty, and S. K. Patra · European Physical Journal C 79, 21
Awards & Fellowships
IPPP Distinguished Visiting Academic Award
Durham University, UK
TUM Global Visiting Professor
Technical University of Munich, Germany
Member, Indian National Young Academy of Sciences
P. K. Kelkar Young Faculty Research Fellowship
IIT Kanpur
Buti Foundation Award
Indian Physics Association
Associate, Indian Academy of Sciences
INSPIRE Faculty Award
Selected for Marie Curie Actions Fellowship
Activities & Scientific Service
- Led the establishment of an institutional memorandum of understanding between IIT Kanpur and the Future Circular Collider collaboration at CERN.
- Contributed to three CERN Yellow Reports, the Snowmass whitepaper programme, and the LHC-EFT Working Group report.
- Organised the Young Particle Physicists Meet at IIT Kanpur and served on organising committees for national and international HEP meetings.
- Serves as a referee for international journals and reviewer of research proposals in India and abroad.
- Conducts open online lectures for high-energy physics students, with special attention to students from under-resourced institutions.
Research Group
High Energy Physics Theory
Current PhD Students
5 scholars- Debmalya Dey ↗Since 2023
- Debanjan Balui ↗Since 2023
- Siddhartha Bandopadhyay ↗Since 2025
- Tushar ↗Since 2025
- Aritrajit Raha ↗Since 2026
Current Postdoctoral Fellow
1 researcher- Tanmoy Kumar ↗Since 2026
Current Collaborators
8 collaborators- Lisa Biermann ↗INSPIRE profile
- Sabyasachi Chakraborty ↗INSPIRE profile
- Bruno Siqueira Eduardo ↗INSPIRE profile
- Christoph Englert ↗INSPIRE profile
- Siddhartha Karmakar ↗INSPIRE profile
- Subhendra Mohanty ↗INSPIRE profile
- Philipp Schicho ↗INSPIRE profile
- Michael Spannowsky ↗INSPIRE profile
Graduated PhD Students
8 graduatesPhenomenological and theoretical aspects of BSM scalars in light of low-energy constraints.
Impact of the effective field theory of the Standard Model and beyond on low-energy observables.
Automatization of integrating out heavy fields and effective classification of beyond-Standard-Model theories.
Cosmological and phenomenological implications of grand unified theories.
Protocols for operator construction within the EFT paradigm.
An effective-field-theory approach to the inverse problem in particle physics.
Leptogenesis as a possible explanation of the baryon asymmetry of the universe.
Methods of integrating out heavy fields through dimension eight and their impact.
Former Postdoctoral Fellows
3 researchers- Dr Sunando Patra ↗2017-2018 · Assistant Professor, Bangabasi College
- Dr Jaydeb Das ↗2023-2024 · NPDF, IIT Guwahati
- Dr Tisa Biswas ↗2024-2025 · NPDF, IMSc, Chennai
INSPIRE Faculty Mentoring
2 faculty mentees- Dr Indrani Chakraborty ↗2018-2023 · Assistant Professor, JIIT Noida
- Dr Nabarun Chakraborty ↗2021-2023 · Assistant Professor, Visva-Bharati University
Research Associates
4 researchers- Reevu Maity2015-2016
- Suneel Chandra Reddy Vemula2017-2018
- Kaanapuli Ramkumar ↗2023-2024
- Nilabhra Adhikary ↗2023-2024
Bachelor's and Master's Thesis Students
9 students- Archan MukhopadhyayMS-PhD dual programme
- Bishnu DasMSc programme
- DharambirMSc programme
- Akshansh SinghBS-MS programme
- Himanshu RatheeBS-MS programme
- Priyank KaushikBS-MS project
- Mudit KumarMSc-PhD dual-degree project
- Subhankar MannaMSc programme
- Kaustubh JhaBS-MS programme
Lecture Notes and Videos
Lecture Videos
Effective Field TheoryICTS Bengaluru lecture ↗ Effective Field TheoryRKMVERI, Belur Math lecture ↗ All Lecture SeriesView the complete video playlists ↗Lecture Notes
Effective Field TheoryOpen PDF lecture notes ↗ Group Theory and its Applications to High Energy PhysicsOpen PDF lecture notes ↗ Quantum MechanicsOpen PDF lecture notes ↗Additional lecture notes can be added here as they become available.
Lecture Notes/Books on EFT (Upcoming)
Effective Field Theory — Volume IOpen PDF cover preview ↗ Effective Field Theory — Volume IIOpen PDF cover preview ↗Professional Experience
Professor
IIT Kanpur
Associate Professor
IIT Kanpur
Assistant Professor
IIT Kanpur
INSPIRE Faculty
IIT Kanpur
Postdoctoral Fellow
Physical Research Laboratory, Ahmedabad
Current Research
Current work develops mathematical and computational formalisms for theoretical physics, with emphasis on symmetry-driven effective field theory, functional matching, heat-kernel methods, gauge-invariant effective potentials, and finite-temperature quantum field theory. These methods are applied to Standard Model extensions, collider observables, neutrino physics, grand unification, and early-universe phenomena.
Sponsored Projects
Core Research Grant
Principal Investigator · SERB, India
Indo-Polish Bilateral Research Grant
Principal Investigator · DST-NAWA
MATRICS Research Grant
Principal Investigator · SERB, India
Early Career Research Award
Principal Investigator · SERB, India
Initiation Research Grant
Principal Investigator · IIT Kanpur
INSPIRE Faculty Award
Principal Investigator · DST, India