Indian Institute of Technology Delhi
July 2025 – PresentPh.D. in Applied Electronics
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Dipanjan Bera
PhD Candidate
IIT Delhi · New Delhi, India
crz258444 (at) care (dot) iitd (dot) ac (dot) in
ABOUT ME
Hi, My name is Dipanjan Bera. I am a 2nd-year PhD student at IIT Delhi, Centre for Applied Research in Electronics (CARE), advised by Dr. Neel Kanth Kundu
My research interests include quantum communication, quantum key distribution (QKD), quantum networks, and quantum information processing. My current work studies multiparty quantum conference key agreement over optical fiber and efficient key distribution in multi-hop QKD networks.
My PhD research is supported by the National Quantum Mission (NQM). Before joining IIT Delhi, I spent few months at DiracQ Systems in Hyderabad, working on quantum key distribution systems. Even earlier, I studied at the wonderful IIT Hyderabad , where I was fortunate to be advised by Dr. Archak Purkayastha.
Education
Indian Institute of Technology Hyderabad
Graduated July 2025M.Tech. in Quantum and Solid-State Devices
College of Engineering and Management, Kolaghat
Graduated June 2023B.Tech. in Electronics and Communication Engineering
EXPERIENCE
Professional experience
Engineering Trainee · DiracQ Systems Pvt. Ltd.
April 2025 – August 2025Contributed to the development of a Quantum Key Distribution (QKD) system using an optical setup and single-photon detectors.
Web Development Intern · Ardent Computech Pvt. Ltd.
Summer 2022Worked with MongoDB, Express.js, React, and Node.js for end-to-end web application development. Developed TextUtils, a React app for word counting, text transformations, and text analysis.
RESEARCH
Research
My work focuses on quantum-secure communication, quantum conference key agreement, and routing in QKD networks.
Publications
Submitted to IEEE TCOM2026
Performance Analysis of Multiparty GHZ-State Quantum Conference Key Agreement over Optical Fiber Channel
Analyzes an N-party GHZ-state quantum conference key agreement protocol using the N-BB84 scheme over optical-fiber channels. Models fiber attenuation, polarization-mode-dispersion-induced dephasing, and detector dark counts; derives bit- and phase-error rates and incorporates them into finite-key secret-key-rate analysis.
Accepted at IEEE ANTS 20262026
Redundant Routing Protocol for Key Rate Maximization in QKD Networks
Studies key-rate maximization for multiple source–destination pairs in multi-hop QKD networks with trusted quantum repeaters. Develops a redundant-routing framework using Key Distribution Link Establishment (KDLE), formulated as a linear program, and Key Distribution Path Selection (KDPS), evaluated through E91-based simulations.
Research Projects
Master’s thesisSept. 2024 – June 2025
Classical Simulation of Quantum Algorithms using Binary Methods
Developed a Python-based framework for quantum operations and circuits, implemented the Quantum Fourier Transform (QFT) and Grover’s algorithm, and benchmarked time complexity against Qiskit and PennyLane.
Master’s researchJan. 2024 – Apr. 2024
Measurement-Induced Phase Transition of Qubits
Investigated how measurement probabilities affect quantum entanglement using quantum circuits with single- and two-qubit gates, projective measurements, and entanglement entropy.
Bachelor’s thesisAug. 2022 – May 2024
Digital Logic IC Tester
Designed and developed an Arduino-based digital logic IC tester to assess logic integrated circuits, with configurable automated tests and immediate feedback on operating status.
OTHERS
Skills, certifications & interests
Technical skills
Programming: Python, MATLAB
Scientific computing / ML: NumPy, TensorFlow, PyTorch, Keras, Scikit-learn, Pandas, Seaborn, Matplotlib
Quantum algorithms and protocols: QFT, Grover’s algorithm, BB84, E91, teleportation, superdense coding
Quantum frameworks: Qiskit, PennyLane
Tools: OOMMF, Origin, LaTeX, VS Code
Certifications
- Introduction to Quantum Information — Coursera (2024)
- Quantum Communication — IBM (2025)
- Quantum Computations and Its Application in Molecular Structure — IIT Kharagpur (2025)
- Supervised Machine Learning: Regression and Classification — Coursera (2024)
- Semiconductor Workforce Development Program — SPARC, IIT Hyderabad (2024)
- A Conference to Shape the Future of Semiconductor Technology — CENSE, IISc (2024)
Leadership & activities
- Inspection Head, Mess Monitoring Council, IIT Hyderabad (2024)
- Head Coordinator, Annual Tech Fest (2022)
Relevant coursework & interests
Quantum mechanics, quantum computing, advanced quantum information and communication, quantum measurement and sensing, optimization, and deep learning.
Interests: Running and badminton.