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Research interests and affiliations

Research interests
  • Quantum information;
  • Quantum Computing;
  • Quantum Optics;
  • Photonics;
  • Quantum Metrology and Spectroscopy;
  • (Gaussian) Boson Sampling;
  • Machine Learning for designing photonic experiments;
  • Squeezed light;
  • Generation of non-Gaussian light;
  • Polaritons and topological photonics;
  • Quantum benchmarking and tomography of complex quantum states.
Expertise type(s) (NSERC subjects)
  • 3100 PHYSICS
  • 3110 Optics (see also photon devices 2505)
  • 3112 Photonics
  • 3153 Classical and quantum physics
  • 2505 Photonic devices and networks
  • 2705 Software and development
  • 2703 Complexity
  • 2956 Optimization and optimal control theory
  • 2958 Mathematical physics
  • 3007 Stochastic processes
  • 3008 Applied probability


Recent publications
Journal article
Arrazola, J.M., Bergholm, V., Brádler, K., Bromley, T.R., Collins, M.J., Dhand, I., Fumagalli, A., Gerrits, T., Goussev, A., Helt, L.G., Hundal, J., Isacsson, T., Israel, R.B., Izaac, J., Jahangiri, S., Janik, R., Killoran, N., Kumar, S.P., Lavoie, J., Lita, A.E., Mahler, D.H., Menotti, M., Morrison, B., Nam, S.W., Neuhaus, L., Qi, H.Y., Quesada, N., Repingon, A., Sabapathy, K.K., Schuld, M., Su, D., Swinarton, J., Száva, A., Tan, K., Tan, P., Vaidya, V.D., Vernon, Z., Zabaneh, Z. & Zhang, Y. (2021). Quantum circuits with many photons on a programmable nanophotonic chip. Nature, 591(7848), 54-60. Retrieved from
Conference paper
Banic, M., Liscidini, M., Quesada, N. & Sipe, J.E. (2021). Spontaneous and Stimulated Three Photon Generation. Paper presented at the Conference on Lasers and Electro-Optics (CLEO_QELS 2021), San Jose, California. Retrieved from


Prof. Nicolas Quesada’s expertise lies at the intersection of quantum photonics, optics and information. His group develops the theory and computational tools underpinning the next generation of nonclassical bright light sources and devices needed for building fault-tolerant quantum computers, quantum communication networks and quantum sensors.

Prior to joining Polytechnique Montréal as an MEI research chair in Quantum Photonics, Prof. Quesada worked at Xanadu Quantum Technologies as a lead developer of Strawberry Fields and The Walrus software libraries and led the theoretical efforts to demonstrate photonic quantum advantage.

Before joining industry, he was an NSERC postdoctoral fellow and, as a Ph.D. student, a Vanier scholar and a Stoicheff scholar.


  • Ph.D. Physics - University of Toronto
  • M.Sc. Physics – University of Toronto
  • B.Sc. Physics – Universidad de Antioquia 2010