Peter Tumiel
Biography
I am currently an MSc student at the University of Cape Town, where I also completed my Honours degree. My path into quantum research began with an interest in experimental physics and hands-on training in experimental techniques. After focusing largely on theoretical physics during my undergraduate studies, I developed a strong desire to work on research that could be physically built, tested, and measured.
Quantum mechanics and solid-state physics became a natural direction, particularly given the growing research activity in quantum computing and quantum metrology. Beyond the challenge of building and operating experiments, the mathematical difficulty of describing quantum effects is part of what makes the field so compelling. Quantum research feels especially meaningful at this moment, as new technologies are increasingly being developed with quantum science in mind. Contributing to that progress, and to the development of future technologies, is a central motivation behind this work.
Research
My research is conducted at ultra-low temperatures, colder than most naturally occurring environments in the universe – even colder than the Boomerang Nebula (about 1 K). The project focuses on charge build-up in single-electron pumps, using these ultra-low temperatures to deterministically pump individual electrons through quantum dots. This allows us to measure properties of single electrons in a highly controllable way.
A key aspect of the research is understanding how electron accumulation behind the pump affects the quantum dot and the conditions under which electron pumping can be observed. The work also probes Landau levels through magnetic-field effects, enabling the observation of phenomena such as the quantum Hall effect.
Awards & presentations
South African Quantum Technology Initiative bursary, 2025.