aliciaAlicia Sit is currently pursuing her master’s degree in physics at the University of Ottawa. In the summer of 2012, before beginning university, she was awarded the Faculty of Science’s Undergraduate Research Scholarship, which gave her the opportunity of starting her research career in a lab at the University of Ottawa. She thus worked in the mass spectrometry lab of Prof. Paul Mayer, where she studied the energetic and entropic behaviours of organic gas phase ions, known as polycyclic aromatic hydrocarbons, found in the interstellar medium through their distinctive dissociation pathways. In 2015, she joined the Structured Quantum Optics group, though the co-op program, where she explores the uses of photonic orbital angular momentum for securely encrypting information with quantum cryptographic methods. She completed her honours thesis entitled “Secure Quantum Communication with Structured Photons in Fiber” under the supervision of Prof. Ebrahim Karimi in 2016, and obtained her honours B.Sc. with a specialization in Physics-Mathematics the following year. When she is not coupling single photons into optical fibers, she is spending her nights on roof tops for the sake of her latest research project: building secure free-space quantum communication links across the city of Ottawa to explore new high-dimensional quantum cryptographic protocols with structured light.


Alicia Sit,
ARC building
Office: +1 (613) 562-5800 X 3339
SQO Lab ARC 122: +1 (613) 562-5800 X 8657
SQO Lab ARC 451: +1 (613) 562-5800 X 1378


  1. A. Sit, F. Bouchard, R. Fickler, J. Gagnon-Bischoff, H. Larocque, K. Heshami, D. Elser, C. Peuntinger, K. Günthner, B. Heim, C. Marquardt, G. Leuchs, R. W. Boyd, E. Karimi, High-Dimensional Intra-City Quantum Cryptography with Structured Photons,  Optica 4, 1006 (2017)
  2. A. Sit, L. Giner, E. Karimi, and J. S. Lundeen, General lossless spatial polarization transformations, Journal of Optics 19, 094003 (2017).
  3. E. Mafakheri, A. H. Tavabi, P.-H. Lu, R. Balboni, F. Venturi, C. Menozzi, G. C. Gazzadi, S. Frabboni, A. Sit, R. E. Dunin-Borkowski, E. Karimi, V. Grillo, Realization of electron vortices with large orbital angular momentum using miniature holograms fabricated by electron beam lithography, Applied Physics Letters 110, 093113 (2017).
  4. H. Larocque, F. Bouchard, V. Grillo, A. Sit, S. Frabboni, R. E. Dunin-Borkowski, M. J. Padgett, R. W. Boyd, and E. Karimi, Nondestructive measurement of orbital angular momentum for an electron beam, Physical Review Letters 117, 154801 (2016).
  5. B. West, A. Sit, S. Mohamed, C. Joblin, V. Blanchet,  A. Bodi, P. M. Mayer, Dissociation of the Anthracene Radical Cation:  A Comparative Look at iPEPICO and Collision-Induced Dissociation Mass Spectrometry ResultsJ. Phys. Chem. A 118, 9870–9878 (2014).
  6. B. West,  A. Sit, A. Bodi, P. Hemberger and P. M. Mayer, Photodissociation of Polycyclic Aromatic Hydrocarbon Fragments: An iPEPICO study of the TPES and Dissociation of Four Substituted Benzene Radical Cations, J. Phys. Chem. A 118, 11226–11234 (2014).