The Quantum Lab at IIIT-Delhi.

BraQIIIT is a research group led by Dr. Debajyoti Bera at the Computer Science department of Indraprastha Institute of Information Technology, Delhi (IIIT-Delhi). Broad research interests of this group include quantum query complexity, quantum circuit complexity, and quantum algorithms for cryptography, machine learning and optimization.

Our Team


Debajyoti Bera

Doctoral Students

Sagnik Chatterjee

3rd Year

Tharrmashastha SAPV

3rd Year


  • D. Bera and S. Chatterjee. Quantum Boosting using Domain-Partitioning Hypotheses. arXiv preprint arXiv:2110.12793(2021).
  • D. Bera, and Tharrmashastha SAPV. HighDist Framework: Algorithms and Applications. arXiv preprint. arXiv:2103.09033(2021).
  • D. Bera and Tharrmashastha SAPV. Quantum and Randomised Algorithms for Non-linearity Estimation. ACM Transactions on Quantum Computing (2021).
  • D. Bera and S. Chatterjee. Applying the Quantum Alternating Operator Ansatz to the Graph Matching Problem. AQIS 2020.
  • D. Bera and Tharrmashastha SAPV. Error reduction of quantum algorithms. Physical Review A 100.012331 (2019).
  • D. Bera, S. Maitra, and Tharrmashastha SAPV. Efficient quantum algorithms related to autocorrelation spectrum. In International Conference on Cryptology in India (INDOCRYPT 2019).
  • D. Bera. Amplitude amplification for operator identification and randomized classes. In International Computing and Combinatorics Conference (COCOON 2018).
  • D. Bera. Detection and Diagnosis of Single Faults in Quantum Circuits. In IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 37, no. 3. (2018)

Useful Resources

Online Resources

Text Books


Lab B-513,
Research and Development Building,
Indraprastha Institute of Information Technology - Delhi,
Okhla Industrial Area Phase III, New Delhi - 110020.

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