I am a quantum technology researcher and specialist at QpiAI India Pvt Ltd with a PhD in Quantum Technology from the Universita degli Studi di Catania, Department of Physics and Astronomy “Ettore Majorana”. I work across the full stack of quantum research - quantum device theory, Hamiltonian modeling, quantum error correction, algorithm design, and AI-driven optimization. My work involves collaborating with experimentalists, chip layout designers, and QEC teams to develop QEC aware hardware solutions. I bring expertise in quantum algorithms, superconducting qubit architectures, optimal control, and the application of machine learning to quantum systems - bringing analytical depth into strong collaborative, cross-disciplinary approach.
Research interests
I work with quantum hardware for computation. I am currently focused on superconducting qubit architectures - modeling hybrid devices, engineering Hamiltonians for high-fidelity two-qubit gates, and co-designing hardware with QEC constraints in mind. My work involves using quantum optimal control for optimising control pulses.
Expertise
Quantum Computation
Superconducting Qubit Device Theory
Hamiltonian Engineering & Circuit QED
Fluxonium Qubits
Hybrid qubits & Superconducting devices
Quantum Error Correction (Stabilizer Codes)
Autonomous QEC & Hardware-Aware Co-design
Quantum Optimal Control (GRAPE, Krotov, CRAB)
Open Quantum Systems & Ultra-Strong Coupling
Quantum Walks & Quantum Algorithms
Computational Physics & Numerical Simulation
Evolutionary Algorithms
Deep Learning Methods in Optimization
Selected publications
Optimized state transfer in systems of ultrastrongly coupled matter and radiation
@article{Giannelli2022,
author = {Giannelli, Luigi and Rajendran, Jishnu and Macr{\`{i}}, Nicola and Benenti, Giuliano and Montangero, Simone and Paladino, Elisabetta and Falci, Giuseppe},
title = {Optimized state transfer in systems of ultrastrongly coupled matter and radiation},
journal = {Il Nuovo Cimento C 45-6, 171 (2022)},
volume = {45},
pages = {1-4},
year = {2022},
month = {mar},
doi = {10.1393/ncc/i2022-22171-y},
eprint = {2203.03364},
archivePrefix = {arXiv},
url = {arxiv.org/pdf/2203.03364}
}
Probing ultrastrong light–matter coupling in open quantum systems
Ridolfo, A., Rajendran, Jishnu, Giannelli, L., Paladino, E., Falci, G.
The European Physical Journal Special Topics, vol. 230(4), 941--945 · EPJS
@article{Ridolfo2021,
author = {Ridolfo, A. and Rajendran, Jishnu and Giannelli, L. and Paladino, E. and Falci, G.},
title = {Probing ultrastrong light--matter coupling in open quantum systems},
journal = {The European Physical Journal Special Topics},
volume = {230},
number = {4},
pages = {941--945},
year = {2021},
month = {may},
doi = {10.1140/epjs/s11734-021-00070-8}
}
Implementing Parrondo's paradox with two-coin quantum walks
Rajendran, Jishnu, Benjamin, Colin
Royal Society Open Science, vol. 5(2), 171599 · RSOS
