Mark Buitelaar is Lecturer at the Department of Physics and the London Centre for Nanotechnology, University College London. After undergraduate studies at Delft University, the Netherlands, he moved to Basel University, Switzerland, for his PhD. There he pioneered the study of superconducting proximity effects in quantum dots and quantum wires, which has since become a very active area of research. After his PhD he worked at the Cavendish Laboratory in Cambridge where he held a Royal Society Dorothy Hodgkin Fellowship (2009-2013), focusing on spin-entangled electron transport in carbon nanotubes and graphene.
In 2012 he joined UCL, and is currently setting up a group working on quantum information processing using carbon-based materials. The results of Mark Buitelaar’s research are summarised in over 25 publications, which attracted over 1000 citations.
Mark’s research involves understanding and engineering quantum coherence and correlations in carbon-based nanodevices - a novel research direction which is highly relevant to fields as diverse as quantum metrology, spintronics, and quantum information processing.
Recent work includes the demonstration of Pauli spin blockade and non-invasive charge and spin state readout of carbon nanotube quantum dots using radio frequency reflectometry. This showed that effective spin-to-charge conversion is feasible in these devices, which is of relevance for spin-based quantum information processing as spin-coherence times in carbon-12 materials are not limited by hyperfine interaction with nuclear spins.
Further work includes studies of Kondo physics in quantum dots such as the competition between Kondo and exchange correlations or, when coupled to superconducting electrodes, the interplay between superconducting and Kondo correlations. This work helps understand the electronic properties of a wide range of materials in which electron correlations play an important role.