Centre Updates

Journal edited by Prof Simmons enters JCR as highest ranked in quantum information

npj Quantum Information (npjQI), edited by CQC2T Director Prof Michelle Simmons, has entered the highly regarded Journal Citation Report (login required) as the top ranked quantum information journal with an impact factor of 9.111.

npjQI is the first Nature Partner Journal to be published in Australia, and was launched by Minister for Education Christopher Pyne. The open source, multidisciplinary journal is published in partnership with UNSW Sydney and CQC2T.

The most viewed and shared articles since the first issue in October 2015 include Quantum algorithms: an overview, Majorana zero modes and topological quantum computation and Demonstration of a quantum advantage in machine learning.

Read UNSW's announcement at the university Newsroom.

Paper by Scott Lillie highlighted in Nature Nanotechnology

A recent paper by Scott Lillie from CQC2T's Melbourne node has been featured as a research highlight in the latest edition of Nature Nanotechnology. The paper on coherent control of a spin qubit in diamond, published in Physical Review Letters, was also selected as an Editor's Suggestion.

EMR schematic for driving of substitutional nitrogen (P1) centre electron spins (red) in bulk diamond. P1 centre nuclear spins (gray) lead to hyperfine splitting of the electron spin transition. Credit: Lillie et al

Read the full paper at Physical Review Letters.

Congratulations to Dr Chunle Xiong, new ARC Future Fellow

CQC2T congratulates Dr Chunle Xiong on being named an ARC Future Fellow in the latest round of funding announcements on 5 June. Chunle is a member of Professor Ping Koy Lam's group at the Centre's Australian National University node.

Dr Chunle Xiong, CQC2T postdoctoral fellow at the Australian National University and ARC Future Fellow

Chunle was awarded $746,000 to address the fundamental challenges of developing quantum communication technology in space. In his work on the project, he will aim to perform space qualification of quantum technologies and optimise quantum key distribution protocols for space applications.

See the full list of new ARC Future Fellows at the Australian Research Council website.

Prof Simmons shares her vision of a quantum future at Vivid

Australia is well positioned to develop a practical quantum computer, said CQC2T director Michelle Simmons as she lauded Australia’s bright future in quantum computing at Sydney's Vivid Ideas festival.

Prof Simmons delivers the keynote address at ‘Creating a Quantum World’. Photo: Sally Maguire/Business Events Sydney

Professor Simmons, speaking at the Museum of Contemporary Art, said that Australia’s research ecosystem has created a unique advantage in the field of quantum science and nanotechnology, citing six quantum-related Australian Research Council Centres of Excellence as an example.

"Fifteen to 20 years ago we saw that rapid improvements in today’s computers were coming to an end, and we saw the promise of quantum, so Australia is now able to take advantage of the skills and technology we’ve developed in that time,” she said.

Read more at the UNSW Sydney Newsroom.

Atomic-scale triumph: CQC2T researchers achieve high fidelity two-qubit readout with record spin times

High-fidelity sequential readout of two electron spins. Credit: Watson et al

Scaling up quantum computers remains one of the toughest challenges facing quantum computing research teams around the world. But new results published in Science Advances show that single-atom qubits in silicon can be engineered with atomic precision to have a five-fold increase in spin relaxation times.

These two-qubit devices are the only semiconductor-based qubits where both qubits have demonstrated the extremely high fidelities required for fault tolerant operation.

The two-qubit readout results were published in Science Advances.