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Dr Matthew Coak
Quantum Devices Group
London Centre for Nanotechnology
University College London
London
Dr Matthew Coak profile picture
Appointment
  • Senior Research Fellow
  • London Centre for Nanotechnology
  • Faculty of Maths & Physical Sciences
Research Summary

My present research work is on quantum nanoelectronics and the development of new technologies for achieving low-noise qubits in quantum computing. My career up until taking this position focused on condensed-matter physics of bulk systems, particularly quantum materials with strong electron-electron correlations and studying the formation of exotic forms of superconductivity – I stand uniquely between these two very different worlds of fundamental solid-state physics and nanoengineering, bringing ideas and techniques from each together to form truly interdisciplinary research.


I am currently working on two distinct qubit technologies, both using state-of-the-art radio wave reflectometry techniques for fast readout of the states of individual electrons in quantum dots. Firstly, manipulation of spin and charge qubits in multi-dots gate-defined in ultrapure suspended carbon nanotubes, secondly in single arsenic dopants positioned with atomic precision in silicon wafers. The latter in particular holds great promise as a future improved basic building block for quantum information processing, due to a high information density, extremely long coherence times and the ability of the arsenic nucleus to store quantum memory.


In addition to experimental measurement and device fabrication I am developing and demonstrating cutting-edge machine-learning techniques for automated fast identification and tuning of qubit states. 



Teaching Summary

2022 - Practical lab demonstrating - Department of Physics, University College London

2022 - Undergraduate tutorial classes - Jesus College, University of Cambridge

2019 - 2020 Practical lab - Deputy Head of Class - Department of Physics, University of Warwick

2013 - 2017 Undergraduate tutorial classes - Jesus College, University of Cambridge

2015 - 2017 Teaching C++ programming course - Department of Physics, University of Cambridge

2015 - 2017 Setting and grading College examinations - Jesus College, University of Cambridge

2013 - 2017 Practical lab demonstrating - Department of Physics, University of Cambridge

Appointments
01-MAR-2022 Senior Research Fellow London Centre for Nanotechnology University College London, United Kingdom
11-MAR-2019 – 28-FEB-2022 Post-doctoral research associate Department of Physics University of Warwick, United Kingdom
25-AUG-2017 – 28-FEB-2019 Post-doctoral Research Associate, Research Team Leader Centre for Correlated Electron Systems Seoul National University, United Kingdom
01-OCT-2013 – 15-JUL-2017 PhD Candidate Cavendish Laboratory University of Cambridge, United Kingdom
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