Theoretical Physics & Quantitative Research

Dr. Partha
Sarathi
Banerjee

PhD in Theoretical Condensed Matter Physics
Indian Institute of Technology, Delhi

Dr. Partha Sarathi Banerjee
Dr. Partha S. Banerjee New Delhi, India
2026
Senior Consultant at Ernst and Young
2026
PhD Completed at IIT Delhi
2025
Model Validation @ Morgan Stanley

About Me

Photo 1
Journal of Optics
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I completed my PhD in Theoretical Condensed Matter Physics (2026) at the Indian Institute of Technology, Delhi, under the supervision of Prof. Rahul Marathe and Prof. Sankalpa Ghosh. My doctoral research focuses on quantum transport in graphene-based heterojunctions. In 2024, I published two works: one establishing an electronic analogue of Fourier optics with massless Dirac fermions, and another exploring the tunability of Josephson current in superconductor–graphene junctions. I also presented my work at the Max Planck Institute for the Physics of Complex Systems, Dresden.

Alongside my PhD, I worked in the Model Risk Management team at Morgan Stanley, Mumbai (2025). My role included validating financial models across domains such as Market Risk RWA and Prudent Valuation, as well as contributing to AI/ML model validations. This involved extensive diagnostic testing, sensitivity analysis, benchmarking, and outcome analysis.

Before my PhD, I completed an MSc in Physics (2017–2019) at IIT Delhi, where I developed a strong interest in theoretical physics and worked on nonequilibrium statistical mechanics for my master's thesis under Prof. Rahul Marathe. Prior to that, I earned my B.Sc. (Hons.) in Physics (2012–2014) from Bangabasi College.

Beyond academics, I am deeply passionate about history, photography, and exploring historical places. These pursuits complement my scientific curiosity and give me new perspectives on culture, time, and human creativity.

Quantum Transport Josephson Junctions Model Risk Management AI/ML Validation Dirac Fermions Python & Data Analysis

Projects

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Calculo

A premium, hardware-accelerated scientific desktop calculator app built natively for Debian Linux distributions. Supports complex numbers, prefix/postfix algebraic formulas, variable mapping, and custom workflows.

PythonPyQt6Linux
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🤖

Prompt Engineering

A collection of prompt engineering techniques, examples, and experiments designed to help build, evaluate, and optimize interactions with large language models.

LLMsAI InteractionOptimization
Read Writeup
⚛️

Bound-States

FORTRAN and Python based numerical tool to compute the wavefunctions and exact eigenvalues of generalized bound state quantum mechanical problems.

FORTRANPythonNumPy
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🔢

Numerical Analysis

Repository containing foundational toy problems utilized to resolve complex numerical equations across physics, engineering, and financial data analysis.

PythonJupyterSciPy
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🐧

Linux-PSB

A suite of automated bash scripts designed to seamlessly provision computational physics environments and scientific software stacks on Ubuntu and Fedora.

BashSystem AdminUbuntu/Fedora
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Publications

2025 Preprint arXiv

Intermediate chiral edge states in quantum Hall Josephson junctions

P. S. Banerjee, R. Marathe, S. Ghosh

2024 Physica Scripta

Magnetically modulated superconductor–graphene–superconductor (SGS) Josephson junctions and their tunability

P. S. Banerjee, R. Marathe, S. Ghosh

2024 Journal of Optics

Electronic analogue of Fourier optics with massless Dirac fermions scattered by quantum dot lattice

P. S. Banerjee, R. Marathe, S. Ghosh

PhD Thesis

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Contact

Direct Contact

📍

Address

Room No. MS306, Department of Physics
Indian Institute of Technology Delhi
Hauz Khas 110 016, New Delhi, INDIA

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Please feel free to ping me anytime if you want to discuss anything like physics, finance, cricket, history, photography, travelling, or geopolitics.