141 citations · 541 across the 14 of their papers we have counts for
14 papers
Noise-robust ground state energy estimates from deep quantum circuits
Harish J. Vallury, Michael A. Jones, Gregory A. L. White +3
In the lead up to fault tolerance, the utility of quantum computing will be determined by how adequately the effects of noise can be circumvented in quantum algorithms. Hybrid quan…
Filtering crosstalk from bath non-Markovianity via spacetime classical shadows
Gregory A. L. White, Kavan Modi, Charles D. Hill
From an open system perspective non-Markovian effects due to a nearby bath or neighbouring qubits are dynamically equivalent. However, there is a conceptual distinction to account…
On the sampling complexity of open quantum systems
Isobel A. Aloisio, Gregory A. L. White, Charles D. Hill +1
Open quantum systems are ubiquitous in the physical sciences, with widespread applications in the areas of chemistry, condensed matter physics, material science, optics, and many m…
Process Tomography on a 7-Qubit Quantum Processor via Tensor Network Contraction Path Finding
Aidan Dang, Gregory A. L. White, Lloyd C. L. Hollenberg +1
Quantum process tomography (QPT), where a quantum channel is reconstructed through the analysis of repeated quantum measurements, is an important tool for validating the operation…
Truncated phase-based quantum arithmetic: error propagation and resource reduction
G. A. L. White, C. D. Hill, L. C. L. Hollenberg
There are two important, and potentially interconnecting, avenues to the realisation of large-scale quantum algorithms: improvement of the hardware, and reduction of resource requi…
What can unitary sequences tell us about multi-time physics?
Gregory A. L. White, Felix A. Pollock, Lloyd C. L. Hollenberg +2
Multi-time quantum processes are endowed with the same richness as multipartite states, including temporal entanglement and exotic causal structures. However, experimentally probin…
Non-Markovian Quantum Process Tomography
Gregory A. L. White, Felix A. Pollock, Lloyd C. L. Hollenberg +2
Characterisation protocols have so far played a central role in the development of noisy intermediate-scale quantum (NISQ) computers capable of impressive quantum feats. This traje…
Whole-device entanglement in a 65-qubit superconducting quantum computer
Gary J. Mooney, Gregory A. L. White, Charles D. Hill +1
The ability to generate large-scale entanglement is an important progenitor of quantum information processing capability in noisy intermediate-scale quantum (NISQ) devices. In this…
Hyperpolarisation of external nuclear spins using nitrogen-vacancy centre ensembles
A. J. Healey, L. T. Hall, G. A. L. White +5
The nitrogen-vacancy (NV) centre in diamond has emerged as a candidate to non-invasively hyperpolarise nuclear spins in molecular systems to improve the sensitivity of nuclear magn…
Generation and verification of 27-qubit Greenberger-Horne-Zeilinger states in a superconducting quantum computer
Gary J. Mooney, Gregory A. L. White, Charles D. Hill +1
Generating and detecting genuine multipartite entanglement (GME) of sizeable quantum states prepared on physical devices is an important benchmark for highlighting the progress of…
Prospects for nuclear spin hyperpolarisation of molecular samples using nitrogen-vacancy centres in diamond
J. -P. Tetienne, L. T. Hall, A. J. Healey +4
After initial proof-of-principle demonstrations, optically pumped nitrogen-vacancy (NV) centres in diamond have been proposed as a non-invasive platform to achieve hyperpolarisatio…
Demonstration of non-Markovian process characterisation and control on a quantum processor
Gregory A. L. White, Charles D. Hill, Felix A. Pollock +2
In the scale-up of quantum computers, the framework underpinning fault-tolerance generally relies on the strong assumption that environmental noise affecting qubit logic is uncorre…
Performance optimization for drift-robust fidelity improvement of two-qubit gates
Gregory A. L. White, Charles D. Hill, Lloyd C. L. Hollenberg
Quantum system characterization techniques represent the front line in the identification and mitigation of noise in quantum computing, but can be expensive in terms of quantum res…
Quantum bath control with nuclear spin state selectivity via pulse-adjusted dynamical decoupling
J. E. Lang, D. A. Broadway, G. A. L. White +5
Dynamical decoupling (DD) is a powerful method for controlling arbitrary open quantum systems. In quantum spin control, DD generally involves a sequence of timed spin flips ( ro…