Malwin Jakob

An electrically driven single-atom "flip-flop" qubit.

Rostyslav Savytskyy, Tim Botzem, Irene Fernandez de Fuentes, Benjamin Joecker, Jarryd J Pla, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, Brett C Johnson, David N Jamieson, Andrew S Dzurak, Andrea Morello

Journal article  |  2023  |  Sci Adv

The spins of atoms and atom-like systems are among the most coherent objects in which to store quantum information. However, the n..

Beating the Thermal Limit of Qubit Initialization with a Bayesian Maxwell?s Demon

Mark A Johnson, Mateusz T Madzik, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, David N Jamieson, Andrew Dzurak, Andrea Morello

Journal article  |  2022  |  PHYSICAL REVIEW X

Fault-tolerant quantum computing requires initializing the quantum register in a well-defined fiducial state. In solid-state syste..

Near-Surface Electrical Characterization of Silicon Electronic Devices Using Focused keV-Range Ions

SG Robson, P Raecke, AM Jakob, N Collins, HR Firgau, V Schmitt, V Mourik, A Morello, E Mayes, D Spemann, DN Jamieson

Journal article  |  2022  |  PHYSICAL REVIEW APPLIED

The demonstration of universal quantum logic operations near the fault-tolerance threshold has established ion-implanted near-surf..

Precision tomography of a three-qubit donor quantum processor in silicon

Mateusz T Madzik, Serwan Asaad, Akram Youssry, Benjamin Joecker, Kenneth M Rudinger, Erik Nielsen, Kevin C Young, Timothy J Proctor, Andrew D Baczewski, Arne Laucht, Vivien Schmitt, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, Brett C Johnson, David N Jamieson, Andrew S Dzurak, Christopher Ferrie, Robin Blume-Kohout, Andrea Morello

Journal article  |  2022  |  NATURE

Nuclear spins were among the first physical platforms to be considered for quantum information processing1,2, because of their exc..

Deterministic Shallow Dopant Implantation in Silicon with Detection Confidence Upper-Bound to 99.85% by Ion-Solid Interactions

Alexander M Jakob, Simon G Robson, Vivien Schmitt, Vincent Mourik, Matthias Posselt, Daniel Spemann, Brett C Johnson, Hannes R Firgau, Edwin Mayes, Jeffrey C McCallum, Andrea Morello, David N Jamieson

Journal article  |  2021  |  ADVANCED MATERIALS

Silicon chips containing arrays of single dopant atoms can be the material of choice for classical and quantum devices that exploi..

High-resolution Rutherford backscattering spectrometry with an optimised solid-state detector

SG Robson, AM Jakob, D Holmes, SQ Lim, BC Johnson, DN Jamieson

Journal article  |  2021  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Rutherford Backscattering Spectrometry (RBS) is a powerful ion beam analysis technique in frequent use within materials science. T..

Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device

Mateusz T Madzik, Arne Laucht, Fay E Hudson, Alexander M Jakob, Brett C Johnson, David N Jamieson, Kohei M Itoh, Andrew S Dzurak, Andrea Morello

Journal article  |  2021  |  NATURE COMMUNICATIONS

Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%. For the spins of an..

Controllable freezing of the nuclear spin bath in a single-atom spin qubit

Mateusz T Madzik, Thaddeus D Ladd, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, Brett C Johnson, Jeffrey C McCallum, David N Jamieson, Andrew S Dzurak, Arne Laucht, Andrea Morello

Journal article  |  2020  |  SCIENCE ADVANCES

The quantum coherence and gate fidelity of electron spin qubits in semiconductors are often limited by nuclear spin fluctuations. ..

Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices

Stefanie B Tenberg, Serwan Asaad, Mateusz T Madzik, Mark A Johnson, Benjamin Joecker, Arne Laucht, Fay E Hudson, Kohei M Itoh, A Malwin Jakob, Brett C Johnson, David N Jamieson, Jeffrey C McCallum, Andrew S Dzurak, Robert Joynt, Andrea Morello

Journal article  |  2019  |  PHYSICAL REVIEW B

We analyze the electron spin relaxation rate 1/T1 of individual ion-implanted P31 donors in a large set of metal-oxide-semiconduct..

Scalable quantum computing with ion-implanted dopant atoms in silicon

A Morello, G Tosi, FA Mohiyaddin, V Schmitt, V Mourik, T Botzem, A Laucht, JJ Pla, S Tenberg, R Savytskyy, M Madzik, F Hudson, AS Dzurak, KM Itoh, AM Jakob, BC Johnson, JC McCallum, DN Jamieson

Conference Proceedings  |  2018  |  2018 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM)

We present a scalable strategy to manufacture quantum computer devices, by encoding quantum information in the combined electron-n..