Arc Centre of Excellence for Quantum Computation and Communication Technology (Cqc2t)

Valley Filtering in Spatial Maps of Coupling between Silicon Donors and Quantum Dots

Joe Salfi, Benoit Voisin, Archana Tankasala, J Bocquel, M Usman, Michelle Simmons, Lloyd Hollenberg, Rajib Rahman, Sven Rogge

2018-08-27

Exchange coupling is a key ingredient for spin-based quantum technologies since it can be used to entangle spin qubits and create ..

Measurements and atomistic theory of electron g -factor anisotropy for phosphorus donors in strained silicon

M Usman, H Huebl, AR Stegner, CD Hill, MS Brandt, LCL Hollenberg

2018-07-26

This work reports the measurement of electron g-factor anisotropy (|Δg|=|g001-g110|) for phosphorous donor qubits in strained sili..

Two-electron states of a group-V donor in silicon from atomistic full configuration interactions

A Tankasala, J Salfi, J Bocquel, B Voisin, M Usman, G Klimeck, MY Simmons, LCL Hollenberg, S Rogge, R Rahman

2018-05-02

Two-electron states bound to donors in silicon are important for both two-qubit gates and spin readout. We present a full configur..

Towards visualisation of central-cell-effects in scanning tunnelling microscope images of subsurface dopant qubits in silicon

M Usman, B Voisin, J Salfi, S Rogge, LCL Hollenberg

2017-11-21

Atomic-scale understanding of phosphorus donor wave functions underpins the design and optimisation of silicon based quantum devic..

Spatial metrology of dopants in silicon with exact lattice site precision

M Usman, J Bocquel, J Salfi, B Voisin, A Tankasala, R Rahman, MY Simmons, S Rogge, LCL Hollenberg

2016-09-07

Scaling of Si-based nanoelectronics has reached the regime where device function is affected not only by the presence of individua..

Scanning Nanospin Ensemble Microscope for Nanoscale Magnetic and Thermal Imaging

JP Tetienne, A Lombard, DA Simpson, C Ritchie, J Lu, P Mulvaney, LCL Hollenberg

2016-01-13

Quantum sensors based on solid-state spins provide tremendous opportunities in a wide range of fields from basic physics and chemi..

Nitrogen Terminated Diamond

A Stacey, KM O'Donnell, JP Chou, A Schenk, A Tadich, N Dontschuk, J Cervenka, C Pakes, A Gali, A Hoffman, S Prawer

2015-07-01

Diamond surface termination with substitutional nitrogen is reported, leading to the formation of a stable surface which is essent..

Single atom devices by ion implantation

J Van Donkelaar, C Yang, ADC Alves, JC McCallum, C Hougaard, BC Johnson, FE Hudson, AS Dzurak, A Morello, D Spemann, DN Jamieson

2015-04-22

To expand the capabilities of semiconductor devices for new functions exploiting the quantum states of single donors or other impu..

Spin-lattice relaxation times of single donors and donor clusters in silicon

YL Hsueh, H Büch, Y Tan, Y Wang, LCL Hollenberg, G Klimeck, MY Simmons, R Rahman

2014-12-11

An atomistic method of calculating the spin-lattice relaxation times (T1) is presented for donors in silicon nanostructures compri..

Non-Abelian geometric phase in the diamond nitrogen-vacancy center

MA Kowarsky, LCL Hollenberg, AM Martin

2014-10-22

This paper introduces a theoretical framework for understanding the accumulation of non-Abelian geometric phases in rotating nitro..

Analytic solutions to the central-spin problem for nitrogen-vacancy centers in diamond

LT Hall, JH Cole, LCL Hollenberg

2014-08-18

Due to interest in both solid-state-based quantum computing architectures and the application of quantum mechanical systems to nan..

Spin blockade and exchange in Coulomb-confined silicon double quantum dots

B Weber, TF Watson, MY Simmons, YHM Tan, R Rahman, G Klimeck, S Mahapatra, H Ryu, LCL Hollenberg

2014-04-13

Electron spins confined to phosphorus donors in silicon are promising candidates as qubits because of their long coherence times, ..

In vivo imaging and tracking of individual nanodiamonds in drosophila melanogaster embryos

DA Simpson, AJ Thompson, M Kowarsky, NF Zeeshan, MSJ Barson, LT Hall, Y Yan, S Kaufmann, BC Johnson, T Ohshima, F Caruso, RE Scholten, RB Saint, MJ Murray, LCL Hollenberg

2014-04-01

In this work, we incorporate and image individual fluorescent nanodiamonds in the powerful genetic model system Drosophila melanog..

Towards single-molecule NMR detection and spectroscopy using single spins in diamond

VS Perunicic, LT Hall, DA Simpson, CD Hill, LCL Hollenberg

2014-02-27

Nanomagnetometry using the nitrogen-vacancy (NV) center in diamond has attracted a great deal of interest due to its unique combin..

Electronic properties and metrology applications of the diamond NV - Center under pressure

MW Doherty, VV Struzhkin, DA Simpson, LP McGuinness, Y Meng, A Stacey, TJ Karle, RJ Hemley, NB Manson, LCL Hollenberg, S Prawer

2014-01-31

The negatively charged nitrogen-vacancy (NV-) center in diamond has realized new frontiers in quantum technology. Here, the optica..

Spatially resolving valley quantum interference of a donor in silicon

J Salfi, JA Mol, R Rahman, G Klimeck, MY Simmons, LCL Hollenberg, S Rogge

2014-01-01

Electron and nuclear spins of donor ensembles in isotopically pure silicon experience a vacuum-like environment, giving them extra..