ARC CENTRE OF EXCELLENCE FOR QUANTUM COMPUTATION AND COMMUNICATION TECHNOLOGY (NON-LEAD) HOLLENBERG (ARC FUNDING)
Grant number: CE170100012 | Funding period: 2017 - 2025
Related publications (68)
Temperature and angle dependent magnetic imaging of biological iron nanoparticles using quantum diamond microscopy
RW de Gille, AJ Healey, IO Robertson, LT Hall, J-P Tetienne, EP Malkemper, DA Keays, LCL Hollenberg, DA Simpson
Quantum diamond microscopy is an emerging versatile technique for studying the magnetic properties of materials. It has been appli..
Observing Er3 Sites in Si With an In Situ Single-Photon Detector
Ian R Berkman, Alexey Lyasota, Gabriele G de Boo, John G Bartholomew, Brett C Johnson, Jeffrey C McCallum, Bin-Bin Xu, Shouyi Xie, Rose L Ahlefeldt, Matthew J Sellars, Chunming Yin, Sven Rogge
We present a flexible method to study the optical properties of an Er3+ ensemble in Si accessed via resonant excitation and in sit..
Imaging current control of magnetization in Fe3GeTe2 with a widefield nitrogen-vacancy microscope
Islay O Robertson, Cheng Tan, Sam C Scholten, Alexander J Healey, Gabriel J Abrahams, Guolin Zheng, Aurelien Manchon, Lan Wang, Jean-Philippe Tetienne
<jats:title>Abstract</jats:title> <jats:p>Van der Waals (vdW) magnets are appealing candidates for realising spintr..
Silicon-Aluminum Phase-Transformation-Induced Superconducting Rings
Brett C Johnson, Michael Stuiber, Daniel L Creedon, Manjith Bose, Amanuel Berhane, Laurens Henry Willems van Beveren, Sergey Rubanov, Jared H Cole, Vincent Mourik, Alexander R Hamilton, Timothy L Duty, Jeffrey Colin McCallum
The development of devices that exhibit both superconducting and semiconducting properties is an important endeavor for emerging q..
Untrained Physically Informed Neural Network for Image Reconstruction of Magnetic Field Sources
AEE Dubois, DA Broadway, A Stark, MA Tschudin, AJ Healey, SD Huber, J-P Tetienne, E Greplova, P Maletinsky
The prediction of measurement outcomes from an underlying structure often follows directly from fundamental physical principles. H..
Integration of Black Phosphorus Photoconductors with Lithium Niobate on Insulator Photonics
Shifan Wang, Robert James Chapman, Brett C Johnson, Inna Krasnokutska, Jean-Luc J Tambasco, Kibret Messalea, Alberto Peruzzo, James Bullock
Photodetectors formed with layered two-dimensional (2D) materials have shown significant potential for integration with photonic c..
Quasiparticle excitations in a one-dimensional interacting topological insulator: Application for dopant-based quantum simulation
David Mikhail, Benoit Voisin, Dominique Didier St Medar, Gilles Buchs, Sven Rogge, Stephan Rachel
We study the effects of electron-electron interactions on the charge excitation spectrum of the spinful Su-Schrieffer-Heeger (SSH)..
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
Fault-tolerant quantum computing requires initializing the quantum register in a well-defined fiducial state. In solid-state syste..
Interactions between Fermi polarons in monolayer WS2
Jack B Muir, Jesper Levinsen, Stuart K Earl, Mitchell A Conway, Jared H Cole, Matthias Wurdack, Rishabh Mishra, David J Ing, Eliezer Estrecho, Yuerui Lu, Dmitry K Efimkin, Jonathan O Tollerud, Elena A Ostrovskaya, Meera M Parish, Jeffrey A Davis
Interactions between quasiparticles are of fundamental importance and ultimately determine the macroscopic properties of quantum m..
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
The demonstration of universal quantum logic operations near the fault-tolerance threshold has established ion-implanted near-surf..
Varied Magnetic Phases in a van der Waals Easy-Plane Antiferromagnet Revealed by Nitrogen-Vacancy Center Microscopy
Alexander J Healey, Sharidya Rahman, Sam C Scholten, Islay O Robertson, Gabriel J Abrahams, Nikolai Dontschuk, Boqing Liu, Lloyd CL Hollenberg, Yuerui Lu, Jean-Philippe Tetienne
Interest in van der Waals materials often stems from a desire to miniaturize existing technologies by exploiting their intrinsic l..
Imaging Current Paths in Silicon Photovoltaic Devices with a Quantum Diamond Microscope
SC Scholten, GJ Abrahams, BC Johnson, AJ Healey, IO Robertson, DA Simpson, A Stacey, S Onoda, T Ohshima, TC Kho, J Ibarra Michel, J Bullock, LCL Hollenberg, J-P Tetienne
Magnetic imaging with nitrogen-vacancy centers in diamond, also known as quantum diamond microscopy, has emerged as a useful techn..
Observing hyperfine interactions of NV- centers in diamond in an advanced quantum teaching lab
Yang Yang, Hyma H Vallabhapurapu, Vikas K Sewani, Maya Isarov, Hannes R Firgau, Chris Adambukulam, Brett C Johnson, Jarryd J Pla, Arne Laucht
The negatively charged nitrogen-vacancy (NV-) center in diamond is a model quantum system for university teaching labs due to its ..
Silicon Carbide Photonics Bridging Quantum Technology
Stefania Castelletto, Alberto Peruzzo, Cristian Bonato, Brett C Johnson, Marina Radulaski, Haiyan Ou, Florian Kaiser, Joerg Wrachtrup
In the last two decades, bulk, homoepitaxial, and heteroepitaxial growth of silicon carbide (SiC) has witnessed many advances, giv..
Single site optical spectroscopy of coupled Er3 ion pairs in silicon
G Hu, RL Ahlefeldt, GG De Boo, A Lyasota, BC Johnson, JC McCallum, MJ Sellars, C Yin, S Rogge
Individual optical emitters coupled via coherent interactions are attractive qubits for quantum communications applications. Here,..
Creation of nitrogen-vacancy centers in chemical vapor deposition diamond for sensing applications
T Luo, L Lindner, J Langer, V Cimalla, X Vidal, F Hahl, C Schreyvogel, S Onoda, S Ishii, T Ohshima, D Wang, DA Simpson, BC Johnson, M Capelli, R Blinder, J Jeske
The nitrogen-vacancy (NV) center in diamond is a promising quantum system for magnetometry applications exhibiting optical readout..
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
Nuclear spins were among the first physical platforms to be considered for quantum information processing1,2, because of their exc..
Time-Resolved Photoionization Detection of a Single Er3 Ion in Silicon
Guangchong Hu, Gabriele G de Boo, Brett Cameron Johnson, Jeffrey Colin McCallum, Matthew J Sellars, Chunming Yin, Sven Rogge
The detection of charge trap ionization induced by resonant excitation enables spectroscopy on single Er3+ ions in silicon nanotra..
An integrated widefield probe for practical diamond nitrogen-vacancy microscopy
GJ Abrahams, SC Scholten, AJ Healey, IO Robertson, N Dontschuk, SQ Lim, BC Johnson, DA Simpson, LCL Hollenberg, J-P Tetienne
The widefield diamond nitrogen-vacancy (NV) microscope is a powerful instrument for imaging magnetic fields. However, a key limita..
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
Silicon chips containing arrays of single dopant atoms can be the material of choice for classical and quantum devices that exploi..
Infrared erbium photoluminescence enhancement in silicon carbide nano-pillars
RA Parker, N Dontschuk, S- Sato, CT-K Lew, P Reineck, A Nadarajah, T Ohshima, BC Gibson, S Castelletto, JC McCallum, BC Johnson
Color centers that emit light at telecommunication wavelengths are promising candidates for future quantum technologies. A pressin..
Visible to Short-Wave Infrared Photodetectors Based on ZrGeTe4 van der Waals Materials
Wei Yan, Brett C Johnson, Sivacarendran Balendhran, Jasper Cadusch, Di Yan, Jesus Ibarra Michel, Shifan Wang, Tian Zheng, Kenneth Crozier, James Bullock
The self-terminated, layered structure of van der Waals materials introduces fundamental advantages for infrared (IR) optoelectron..
Fluorescent Silicon Carbide Nanoparticles
Mitchell O de Vries, Shin-ichiro Sato, Takeshi Ohshima, Brant C Gibson, Jean-Marie Bluet, Stefania Castelletto, Brett C Johnson, Philipp Reineck
Silicon carbide (SiC) is an indirect wide band gap semiconductor that is utilized in many industrial applications due to its extre..
Polarization Transfer to External Nuclear Spins Using Ensembles of Nitrogen-Vacancy Centers
AJ Healey, LT Hall, GAL White, T Teraji, M-A Sani, F Separovic, J-P Tetienne, LCL Hollenberg
The nitrogen-vacancy (N-V) center in diamond has emerged as a candidate to noninvasively hyperpolarize nuclear spins in molecular ..
Ultrashallow Junction Electrodes in Low-Loss Silicon Microring Resonators
Bin-Bin Xu, Gabriele G de Boo, Brett C Johnson, Milos Rancic, Alvaro Casas Bedoya, Blair Morrison, Jeffrey C McCallum, Benjamin J Eggleton, Matthew J Sellars, Chunming Yin, Sven Rogge
Electrodes in close proximity to an active area of a device are required for sufficient electrical control. The integration of suc..
Prospects for nuclear spin hyperpolarization of molecular samples using nitrogen-vacancy centers in diamond
J-P Tetienne, LT Hall, AJ Healey, GAL White, M-A Sani, F Separovic, LCL Hollenberg
After initial proof-of-principle demonstrations, optically pumped nitrogen-vacancy (NV) centers in diamond have been proposed as a..
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
Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%. For the spins of an..
Isotopic enrichment of silicon by high fluence Si-28(-) ion implantation
D Holmes, BC Johnson, C Chua, B Voisin, S Kocsis, S Rubanov, SG Robson, JC McCallum, DR McCamey, S Rogge, DN Jamieson
Spins in the "semiconductor vacuum"of silicon-28 (Si28) are suitable qubit candidates due to their long coherence times. An isotop..
Coherent control of NV- centers in diamond in a quantum teaching lab
Vikas K Sewani, Hyma H Vallabhapurapu, Yang Yang, Hannes R Firgau, Chris Adambukulam, Brett C Johnson, Jarryd J Pla, Arne Laucht
The room temperature compatibility of the negatively charged nitrogen-vacancy (NV-) center in diamond makes it the ideal quantum s..
Valley interference and spin exchange at the atomic scale in silicon
B Voisin, J Bocquel, A Tankasala, M Usman, J Salfi, R Rahman, MY Simmons, LCL Hollenberg, S Rogge
Tunneling is a fundamental quantum process with no classical equivalent, which can compete with Coulomb interactions to give rise ..
Comparison of different methods of nitrogen-vacancy layer formation in diamond for wide-field quantum microscopy
AJ Healey, A Stacey, BC Johnson, DA Broadway, T Teraji, DA Simpson, J-P Tetienne, LCL Hollenberg
Thin layers of near-surface nitrogen-vacancy (NV) defects in diamond substrates are the workhorse of NV-based wide-field magnetic ..
High-resolution spectroscopy of individual erbium ions in strong magnetic fields
Gabriele G de Boo, Chunming Yin, Milos Rancic, Brett C Johnson, Jeffrey C McCallum, Matthew J Sellars, Sven Rogge
In this paper, we use electrically detected optical excitation spectroscopy of individual erbium ions in silicon to determine thei..
Investigation of charge carrier trapping in H-terminated diamond devices
CT-K Lew, N Dontschuk, DA Broadway, J-P Tetienne, JC McCallum, LCL Hollenberg, BC Johnson
Surfaces and interfaces can dominate charge carrier transport dynamics in electronic devices, impeding realization of a material's..
Imaging Domain Reversal in an Ultrathin Van der Waals Ferromagnet
David A Broadway, Sam C Scholten, Cheng Tan, Nikolai Dontschuk, Scott E Lillie, Brett C Johnson, Guolin Zheng, Zhenhai Wang, Artem R Oganov, Shangjie Tian, Chenghe Li, Hechang Lei, Lan Wang, Lloyd CL Hollenberg, Jean-Philippe Tetienne
The recent isolation of 2D van der Waals magnetic materials has uncovered rich physics that often differs from the magnetic behavi..
Improved Current Density and Magnetization Reconstruction Through Vector Magnetic Field Measurements
DA Broadway, SE Lillie, SC Scholten, D Rohner, N Dontschuk, P Maletinsky, J-P Tetienne, LCL Hollenberg
Stray magnetic fields contain significant information about the electronic and magnetic properties of condensed matter systems. Fo..
Epitaxial Formation of SiC on (100) Diamond
Alexander Tsai, Alireza Aghajamali, Nikolai Dontschuk, Brett C Johnson, Muhammad Usman, Alex K Schenk, Michael Sear, Christopher I Pakes, Lloyd CL Hollenberg, Jeffrey C McCallum, Sergey Rubanov, Anton Tadich, Nigel A Marks, Alastair Stacey
We demonstrate locally the coherent formation of silicon carbide (SiC) on diamond, a rare example of heteroepitaxy with a lattice ..
Engineering long spin coherence times of spin-orbit qubits in silicon
Takashi Kobayashi, Joseph Salfi, Cassandra Chua, Joost van der Heijden, Matthew G House, Dimitrie Culcer, Wayne D Hutchison, Brett C Johnson, Jeff C McCallum, Helge Riemann, Nikolay Abrosimov, Peter Becker, Hans-Joachim Pohl, Michelle Y Simmons, Sven Rogge
Electron-spin qubits have long coherence times suitable for quantum technologies. Spin–orbit coupling promises to greatly improve ..
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
The quantum coherence and gate fidelity of electron spin qubits in semiconductors are often limited by nuclear spin fluctuations. ..
Enhanced Widefield Quantum Sensing with Nitrogen-Vacancy Ensembles Using Diamond Nanopillar Arrays
Daniel J McCloskey, Nikolai Dontschuk, David A Broadway, Athavan Nadarajah, Alastair Stacey, Jean-Philippe Tetienne, Lloyd CL Hollenberg, Steven Prawer, David A Simpson
Surface micro- and nano-patterning techniques are often employed to enhance the optical interface to single photoluminescent emitt..
Framework for atomic-level characterisation of quantum computer arrays by machine learning
Muhammad Usman, Yi Zheng Wong, Charles D Hill, Lloyd CL Hollenberg
Atomic-level qubits in silicon are attractive candidates for large-scale quantum computing; however, their quantum properties and ..
Laser Modulation of Superconductivity in a Cryogenic Wide-field Nitrogen-Vacancy Microscope.
Scott E Lillie, David A Broadway, Nikolai Dontschuk, Sam C Scholten, Brett C Johnson, Sebastian Wolf, Stephan Rachel, Lloyd CL Hollenberg, Jean-Philippe Tetienne
We realize a cryogenic wide-field nitrogen-vacancy microscope and use it to image Abrikosov vortices and transport currents in a s..
Development of a silicon-diamond interface on (111) diamond
AK Schenk, MJ Sear, N Dontschuk, A Tsai, KJ Rietwyk, A Tadich, BCC Cowie, L Ley, A Stacey, C Pakes
We report the preparation of a silicon terminated (111) diamond surface. Low energy electron diffraction and core level photoemiss..
Quantum Bath Control with Nuclear Spin State Selectivity via Pulse-Adjusted Dynamical Decoupling
JE Lang, DA Broadway, GAL White, LT Hall, A Stacey, LCL Hollenberg, TS Monteiro, J-P Tetienne
Dynamical decoupling (DD) is a powerful method for controlling arbitrary open quantum systems. In quantum spin control, DD general..
First-Principles Calculation of Triplet Exciton Diffusion in Crystalline Poly(p-phenylene vinylene)
Igor Lyskov, Egor Trushin, Ben Q Baragiola, Timothy W Schmidt, Jared H Cole, Saly P Russo
In this article, we present multiscale modeling of triplet exciton energy migrating through the archetypical poly(p-phenylene viny..
Optically Active Defects at the SiC/SiO2 Interface
BC Johnson, J Woerle, D Haasmann, CT-K Lew, RA Parker, H Knowles, B Pingault, M Atature, A Gali, S Dimitrijev, M Camarda, JC McCallum
The SiC/SiO2 interface is a central component of many SiC electronic devices. Defects intrinsic to this interface can have a profo..
Origins of Diamond Surface Noise Probed by Correlating Single-Spin Measurements with Surface Spectroscopy
Sorawis Sangtawesin, Bo L Dwyer, Srikanth Srinivasan, James J Allred, Lila VH Rodgers, Kristiaan De Greve, Alastair Stacey, Nikolai Dontschuk, Kane M O'Donnell, Di Hu, D Andrew Evans, Cherno Jaye, Daniel A Fischer, Matthew L Markham, Daniel J Twitchen, Hongkun Park, Mikhail D Lukin, Nathalie P de Leon
The nitrogen-vacancy (NV) center in diamond exhibits spin-dependent fluorescence and long spin coherence times under ambient condi..
Activation and electron spin resonance of near-surface implanted bismuth donors in silicon
D Holmes, WIL Lawrie, BC Johnson, A Asadpoordarvish, JC McCallum, DR McCamey, DN Jamieson
The bismuth (Bi) substitutional donor in silicon (Si) is an attractive qubit candidate for quantum computing proposals due to its ..
Imaging Graphene Field-Effect Transistors on Diamond Using Nitrogen-Vacancy Microscopy
Scott E Lillie, Nikolai Dontschuk, David A Broadway, Daniel L Creedon, Lloyd CL Hollenberg, Jean-Philippe Tetienne
The application of imaging techniques based on ensembles of nitrogen-vacancy (N-V) sensors in diamond to characterize electrical d..
Single Rare-Earth Ions as Atomic-Scale Probes in Ultrascaled Transistors
Qi Zhang, Guangchong Hu, Gabriele G de Boo, Milos Rancic, Brett C Johnson, Jeffrey C McCallum, Jiangfeng Du, Matthew J Sellars, Chunming Yin, Sven Rogge
Continued scaling of semiconductor devices has driven information technology into vastly diverse applications. The performance of ..
Microscopic Imaging of the Stress Tensor in Diamond Using in Situ Quantum Sensors
DA Broadway, BC Johnson, MSJ Barson, SE Lillie, N Dontschuk, DJ McCloskey, A Tsai, T Teraji, DA Simpson, A Stacey, JC McCallum, JE Bradby, MW Doherty, LCL Hollenberg, J-P Tetienne
The precise measurement of mechanical stress at the nanoscale is of fundamental and technological importance. In principle, all si..
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
We analyze the electron spin relaxation rate 1/T1 of individual ion-implanted P31 donors in a large set of metal-oxide-semiconduct..
Low-Temperature Properties of Whispering-Gallery Modes in Isotopically Pure Silicon-28
J Bourhill, M Goryachev, DL Creedon, BC Johnson, DN Jamieson, ME Tobar
Whispering-gallery-(WG) mode resonators are machined from a boule of single-crystal isotopically pure silicon-28. Before machining..
Apparent delocalization of the current density in metallic wires observed with diamond nitrogen-vacancy magnetometry
J-P Tetienne, N Dontschuk, DA Broadway, SE Lillie, T Teraji, DA Simpson, A Stacey, LCL Hollenberg
We report on a quantitative analysis of the magnetic field generated by a continuous current running in metallic microwires fabric..
Photoluminescence in hexagonal silicon carbide by direct femtosecond laser writing
S Castelletto, AFM Almutairi, K Kumagai, T Katkus, Y Hayasaki, BC Johnson, S Juomos
Direct femtosecond laser writing has been used to produce localized regions of photo-luminescent emission in 4H- and 6H-silicon ca..
Magnetic noise from ultrathin abrasively deposited materials on diamond
Scott E Lillie, David A Broadway, Nikolai Dontschuk, Ali Zavabeti, David A Simpson, Tokuyuki Teraji, Torben Daeneke, Lloyd CL Hollenberg, Jean-Philippe Tetienne
Sensing techniques based on the negatively charged nitrogen-vacancy (NV) center in diamond have emerged as promising candidates to..
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
We present a scalable strategy to manufacture quantum computer devices, by encoding quantum information in the combined electron-n..