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Maximising Dynamic Nuclear Polarisation via Selective Hyperfine Tuning
L. T. Hall, D. A. Broadway, A. Stacey +3
Dynamic nuclear polarisation (DNP) refers to a class of techniques used to increase the signal in nuclear magnetic resonance measurements by transferring spin polarisation from ens…
Quantum computed moments correction to variational estimates
Harish J. Vallury, Michael A. Jones, Charles D. Hill +1
The variational principle of quantum mechanics is the backbone of hybrid quantum computing for a range of applications. However, as the problem size grows, quantum logic errors and…
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…
Comparison of different methods of nitrogen-vacancy layer formation in diamond for widefield quantum microscopy
A. J. Healey, A. Stacey, B. C. Johnson +5
Thin layers of near-surface nitrogen-vacancy (NV) defects in diamond substrates are the workhorse of NV-based widefield magnetic microscopy, which has applications in physics, geol…
Improved current density and magnetisation reconstruction through vector magnetic field measurements
D. A. Broadway, S. E. Lillie, Sam C. Scholten +5
Stray magnetic fields contain significant information about the electronic and magnetic properties of condensed matter systems. For two-dimensional (2D) systems, stray field measur…
Interplay between geometric and dynamic phases in a single spin system
A. A. Wood, K. Streltsov, R. M. Goldblatt +4
We use a combination of microwave fields and free precession to drive the spin of a nitrogen-vacancy (NV) center in diamond on different trajectories on the Bloch sphere, and inves…