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Diamond Quantum Science and Technology at ANU

Diamond Quantum Science and Technology at ANU

Datum: 24. Mai 2016 13:00

Ort: NWZII, 6.331

Optical defects in diamond are leading platforms for the development of quantum technologies that span the fields of microscopy, computing and communications. These technologies offer superior and/ or new capabilities when compared to their classical analogues of today. For example, diamond quantum microscopes have performed such feats as magnetic resonance spectroscopy of single molecules and thermometry within living cells. Quantum optical communication between defects in distant diamonds has enabled the conduct of loop-hole free tests of Bell’s inequalities. Clusters of diamond defects have realised small-scale quantum processors capable of implementing quantum algorithms at room temperature.

In this presentation, I will outline the evolving research program of the Diamond Quantum Science and Technology group at the Australian National University. The program has three topic areas: defect discovery and engineering, quantum microscopy and, quantum computing and communications. In the area of defect discovery and engineering, I will detail our developing ab initio computational methodologies for the rapid characterisation of emerging defects in diamond (and related materials) as well as new understanding of established defects that may lead to the engineering of their key property: optical spin initialisation and readout. In the area of quantum microscopy, I will introduce techniques of nano-spin-mechanical sensing that have the potential to enable unprecedented study of cellular biomechanics and the inertial imaging/ detection of single macromolecules, such as proteins. In the area of quantum computing and communications, I will describe our recent approaches to addressing the major barrier to large-scale diamond quantum computing: the realisation of quantum buses to network distant defect-cluster processors. These approaches include engineering defect-phonon interactions as well as photo-controlled spin transport.

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