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Efficient Qubit Routing for a Globally Connected Trapped Ion Quantum Computer

By |2020-09-03T14:33:50+01:00February 28th, 2020|

The cost of enabling connectivity in Noisy-Intermediate-Scale-Quantum devices is an important factor in determining computational power. A particular architecture for trapped-ion quantum computing relies on shuttling ions. An efficient ion routing algorithm has been created along with an appropriate error model, which can be used to estimate the achievable circuit depth and quantum volume as a function of experimental parameters.

Our paper has been published in Advanced Quantum Technologies 3, June 2020 Efficient Qubit routing for a globally connected trapped ion quantum computer

University of Sussex Research News press release, August 2020 Sussex study enables predicting computational power of early quantum computers

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Engineering of Microfabricated Ion Traps and Integration of Advanced On-Chip Features

By |2020-06-05T16:31:38+01:00July 1st, 2019|

Ion trap microchips form the core of many quantum technologies, in particular, the trapped ion quantum computers. We provide an overview of state-of-the-art microfabrication techniques, as well as various considerations which motivate the choice of materials and processes. Finally, we discuss current efforts to include advanced, on-chip features into next generation ion traps. Our paper has been published in Nature Review Physics, June 2020.

Manuscript: Engineering of Microfabricated Ion Traps and Integration of Advanced On-Chip Features

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Generation of high-fidelity quantum control methods for multi-level systems

By |2020-02-25T08:27:20+00:00October 1st, 2018|

We introduce a powerful technique to transform all existing two-level quantum control methods to new multi-level quantum control methods. We illustrate the technique by coherently mapping between two different qubit types with error well below the relevant fault-tolerant threshold, creating another important tool towards constructing a large scale quantum computer. (more…)

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Sussex quantum physicist gives evidence to MPs on future of technology

By |2020-02-17T09:53:52+00:00July 19th, 2018|

Professor Winfried Hensinger, Director of the SussexCentre for Quantum Technologies and Head of the Sussex Ion Quantum Technology Group appeared before the House of Commons’ Science and Technology Select Committee on 17 July, to give evidence as part of the Committee’s inquiry exploring the opportunities and challenges for new quantum technologies. (more…)

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Sussex physicist advises German Parliament on quantum computing

By |2020-02-17T09:24:13+00:00June 8th, 2018|

Professor Winfried Hensinger, Director of the Sussex Centre for Quantum Technologies and Head of the Sussex Ion Quantum Technology Group, was invited by the German Parliament to testify about the ideas and technology behind quantum computing. (more…)

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