output
20062024
most citedAn accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal

220 citations

18 papers

q-bio.OT2024★ 1 cited

Development of an updated, comprehensive food composition database for Australian-grown horticultural commodities

Eleanor Dunlop, Judy Cunningham, Paul Adorno +3

Australian agriculture supplies many horticultural commodities to domestic and international markets; however, food composition data for many commodities are outdated or unavailabl…

q-bio.OT2024★ 6 cited

Vitamin K content of Australian-grown horticultural commodities

Eleanor Dunlop, Judy Cunningham, Paul Adorno +3

Vitamin K is emerging as a multi-function vitamin that plays a role in bone, brain and vascular health. Vitamin K composition data remain limited globally and Australia has lacked…

physics.atom-ph2023★ 134 cited

Roadmap towards the redefinition of the second

N. Dimarcq, M. Gertsvolf, G. Mileti +34

This paper outlines the roadmap towards the redefinition of the second, which was recently updated by the CCTF Task Force created by the CCTF in 2020. The main achievements and the…

quant-ph2018★ 45 cited

Optimally band-limited spectroscopy of control noise using a qubit sensor

Leigh M. Norris, Dennis Lucarelli, Virginia M. Frey +3

Classical control noise is ubiquitous in qubit devices, making its accurate spectral characterization essential for designing optimized error suppression strategies at the physical…

quant-ph2017★ 57 cited

Experimental quantum verification in the presence of temporally correlated noise

S. Mavadia, C. L. Edmunds, C. Hempel +4

Growth in the complexity and capabilities of quantum information hardware mandates access to practical techniques for performance verification that function under realistic laborat…

quant-ph2017★ 71 cited

Application of optimal band-limited control protocols to quantum noise sensing

V. M. Frey, S. Mavadia, L. M. Norris +4

Industrial, metrological, and medical applications provide a strong technological pull for advanced nanoscale sensors exploiting the unique sensitivity of quantum coherent systems…

quant-ph2016★ 84 cited

Prediction and real-time compensation of qubit decoherence via machine-learning

Sandeep Mavadia, Virginia Frey, Jarrah Sastrawan +2

The wide-ranging adoption of quantum technologies requires practical, high-performance advances in our ability to maintain quantum coherence while facing the challenge of state col…

quant-ph2015★ 81 cited

The effect of noise correlations on randomized benchmarking

Harrison Ball, Thomas M. Stace, Steven T. Flammia +1

Among the most popular and well studied quantum characterization, verification and validation techniques is randomized benchmarking (RB), an important statistical tool used to char…

quant-ph2014★ 5 cited

Analytically exploiting noise correlations inside the feedback loop to improve locked-oscillator performance

J. Sastrawan, C. Jones, I. Akhalwaya +2

We introduce concepts from optimal estimation to the stabilization of precision frequency standards limited by noisy local oscillators. We develop a theoretical framework casting v…

quant-ph2014★ 42 cited

Experimental bath engineering for quantitative studies of quantum control

A. Soare, H. Ball, D. Hayes +5

We develop and demonstrate a technique to engineer universal unitary baths in quantum systems. Using the correspondence between unitary decoherence due to ambient environmental noi…

quant-ph2014★ 148 cited

Experimental noise filtering by quantum control

A. Soare, H. Ball, D. Hayes +6

Instabilities due to extrinsic interference are routinely faced in systems engineering, and a common solution is to rely on a broad class of techniques in orde…

physics.atom-ph2014★ 18 cited

Frequency Stabilization of a 369 nm Diode Laser by Nonlinear Spectroscopy of Ytterbium Ions in a Discharge

Michael W Lee, Marie Claire Jarratt, Christian Marciniak +1

We demonstrate stabilisation of an ultraviolet diode laser via Doppler free spectroscopy of Ytterbium ions in a discharge. Our technique employs polarization spectroscopy, which pr…

quant-ph2013★ 30 cited

Programmable quantum simulation by dynamic Hamiltonian engineering

David L. Hayes, Steven T. Flammia, Michael J. Biercuk

Quantum simulation is a promising near term application for mesoscale quantum information processors, with the potential to solve computationally intractable problems at the scale…

physics.optics2013★ 17 cited

A high-power 626 nm diode laser system for Beryllium ion trapping

H. Ball, M. W. Lee, S. D. Gensemer +1

We describe a high-power, frequency-tunable, external cavity diode laser (ECDL) system near 626 nm useful for laser cooling of trapped Be ions. A commercial single-mode las…

physics.ins-det2013★ 30 cited

Precision measurements of the Planck and Avogadro constants

Horst Bettin, Kenichi Fujii, John Man +3

Precision measurements of the fundamental constants are tour de force of basic metrology, where the useful information is usually beyond the last digit of the measured value. They…

physics.atom-ph2010★ 220 cited

An accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal

B. Andreas, Y. Azuma, G. Bartl +23

The Avogadro constant links the atomic and the macroscopic properties of matter. Since the molar Planck constant is well known via the measurement of the Rydberg constant, it is al…

physics.optics2010★ 20 cited

Sagnac Interferometer Enhanced Particle Tracking in Optical Tweezers

M. A. Taylor, J. Knittel, M. T. L. Hsu +2

A setup is proposed to enhance tracking of very small particles, by using optical tweezers embedded within a Sagnac interferometer. The achievable signal-to-noise ratio is shown to…

physics.ins-det2006★ 28 cited

Long Term Operation and Performance of Cryogenic Sapphire Oscillators

M. E. Tobar, E. N. Ivanov, C. R. Locke +12

Cryogenic Sapphire Oscillators (CSO) developed at UWA have now been in operation around the world continuously for many years. Such oscillators, due to their excellent spectral pur…