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Marius Hegedüs

Marius Hegedüs

Higher Scientist

Marius, an alumnus of Charles University in Prague, began his academic journey in applied physics, concentrating on the Physics of Materials during his undergraduate studies. He then moved to the UK to pursue his master's degree at Royal Holloway, University of London. His research made strides in quantum sensing, focusing on developing compact THz radiation detectors and imagers that utilize innovative quantum dot design.

In 2023, Marius completed his PhD research at Royal Holloway, University of London, and the National Physical Laboratory. His PhD research involved the development of a novel Scanning Gate Microscope. This specialized instrument is a pivotal part of the Scanning Quantum Probe Microscopy efforts at NPL towards in-situ detection and characterization of individual quantum Two-level system defects (TLS) in superconducting quantum devices. TLS are known to be major culprits in introducing noise and decoherence, significantly impeding the performance and reliability of superconducting quantum computing technologies.

Areas of Interest

  • Development and characterization of quantum sensors and detectors.
  • Design and fabrication of superconducting quantum devices. With a focus on efficient integration of components, optimization of fabrication processes and use of novel materials crucial to advancing quantum computing.
  • Measurement and characterization of superconducting qubits to better understand their behaviour in quantum computing systems.
  • Exploring the intricacies of decoherence and 1/f noise in superconducting qubits, particularly concerning microscopic quantum Two-level system defects.
  • Researching superconducting quantum devices such as thin-film resonators and superconducting qubits utilizing quantum scanning probe microscopy, with a particular emphasis on applications in quantum computing.
  • Scaling up superconducting quantum computers, aiming to enhance their practical applicability and efficiency.