Journal article

Environmentally Mediated Coherent Control of a Spin Qubit in Diamond

Scott E Lillie, David A Broadway, James DA Wood, David A Simpson, Alastair Stacey, Jean-Philippe Tetienne, Lloyd CL Hollenberg

Physical Review Letters | American Physical Society | Published : 2017

Abstract

The coherent control of spin qubits forms the basis of many applications in quantum information processing and nanoscale sensing, imaging, and spectroscopy. Such control is conventionally achieved by direct driving of the qubit transition with a resonant global field, typically at microwave frequencies. Here we introduce an approach that relies on the resonant driving of nearby environment spins, whose localized magnetic field in turn drives the qubit when the environmental spin Rabi frequency matches the qubit resonance. This concept of environmentally mediated resonance (EMR) is explored experimentally using a qubit based on a single nitrogen-vacancy (NV) center in diamond, with nearby ele..

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Grants

Awarded by Australian Research Council (ARC) under the Centre of Excellence scheme


Awarded by ARC


Funding Acknowledgements

The authors acknowledge useful discussions with L. T. Hall. This work was supported in part by the Australian Research Council (ARC) under the Centre of Excellence scheme (Project No. CE110001027). This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). L. C. L. H. acknowledges the support of an ARC Laureate Fellowship (Project No. FL130100119). J.-P. T acknowledges support from the ARC through the Discovery Early Career Researcher Award scheme (DE170100129) and the University of Melbourne through an Establishment Grant and an Early Career Researcher Grant. S. E. L and D. A. B are supported by an Australian Government Research Training Program Scholarship.