Quantum Physics Research Group

This is a research group within the Department of Electrical, Electronic, and Computer Engineering at CPUT. The group, led by physicist Dr Kessie Govender, will investigate and develop expertise in quantum based technologies, such as quantum communications, quantum computing and investigate more fundamental issues related to cold atoms and Bose-Einstein Condensates. A laboratory is being developed for the purposes of laser cooling of atoms, and subsequent development of quantum information processing components. The group has collaborative links with researchers at the University of Stellenbosch, iThemba labs, and the National Metrology Institute of South Africa (NMISA).

Contact

Dr Kessie Govender
Dept. of Electrical, Electronic and Computer Engineering
Email: govenderk@cput.ac.za
Tel: +27 21 959 6925

Group members

Dr Kessie Govender (group leader)
Email: govenderk@cput.ac.za

Prof G. de Jager, Adjunct Professor and advisor
Email: Gerhard.DeJager@uct.ac.za

Prof Gerard Orjubin
Email: OrjubinG@cput.ac.za

Mr Rory Pentz, Staff member and Doctoral student
Email: pentzr@cput.ac.za

Mr Adrian Wyngaard, Masters students

Ms Meena Patel, Masters student

Mr James Stubbs, Masters student

Mr Victory Opeolu, Masters student

Mr Mpiana Florimond, Masters student at UKZN

Current projects

  • Theoretical and numerical studies of Four Wave Mixing in Rubidium
  • Saturated absorption and Zeeman spectroscopy of Rubidium
  • Feedback control of external cavity diode lasers
  • Experimental Four Wave Mixing in Rubidium gas
  • Laser cooling of Rubidium atoms
  • Development of a quantum key distribution system using entangled photons
  • Development of single photon detectors

Publications

  1. Patel M., de Jager G., Wyngaard A., Nkosi Z. and Govender K., Computational study of nonlinear spectroscopy including saturated absorption and four wave mixing  in two and multi-level atoms, Proc. Int Conf. Comp. Phys, 2016.( Accepted for publication in Journal of Physics: conference series in 2017)
  2. Patel M., de Jager G., Nkosi Z. and Govender K., Non-linear optical processes and saturated absorption spectroscopy in two and multi-level atoms: a theoretical and numerical study, Annual conference South African Institute of Physics, 2016(paper to appear in the 2016 proceedings).
  3. Wyngaard A., Govender K., Steenkamp C., de Jager G.,Experimental Study of the Weak Field Zeeman Spectra of Rb 85 and Rb 87, Annual conference South African Institute of Physics, 2017 (paper to appear in the 2017 proceedings)
  4. Patel M., Govender K., de jager G., Florimond M.,A semi-classical and quantum mechanical analysis of Four-Wave-Mixing in an ensemble of Rubidium atoms, Annual conference South African Institute of Physics, 2017 (poster)
  5. Opeolu V., Govender K., de Jager G.  Nemraou O., Scarrot J.,Analysis and Performance of a closed loop external cavity diode laser control system, Annual conference South African Institute of Physics, 2017.(paper to appear in the 2017 proceedings)
  6. Wyngaard A., Govender K., and Steenkamp C., Measurements of the hyperfine and weak field Zeeman spectra of Rb 85and Rb 87, Annual conference South African Institute of Physics, 2016(poster).
  7. Stubbs J., Govender K., De Jager G.,The design of a cost effective high precision time measurement unit for use in a Hanbury-Brown Twiss interferometer,Annual conference South African Institute of Physics, 2016(poster).