PhD Studentship in Trapped-ion quantum computing with microwave radiation (2016)

A 3.5 year PhD position is available in the Ion Quantum Technology Group in the Department of Physics & Astronomy at the University of Sussex. The position consists of current UK/EU fees and a yearly stipend of £ £14296 which can be supplemented by tutoring. The position also includes an annual travel allowance. You should have a physics or related degree.

Impressive progress has been made in the implementation of quantum technologies with trapped ions. This includes the realisation of high-fidelity quantum gates, quantum error correction, teleportation and many quantum algorithms. Traditionally, quantum gates with trapped ions have been implemented using pairs of laser beams. Large-scale quantum computers may require in excess of millions of individual quantum bits. Creating the required number of laser beams to entangle the ions may indeed entail significant engineering and come at a significant cost. By contrast, the use of microwave radiation for the same purpose would be much easier and would make the construction of an actual large-scale ion-trap quantum-information processor much simpler. We already implemented two-ion quantum gates using microwave radiation close to the fault-tolerant threshold. As part of this project, you will work on the implementation of quantum algorithms and quantum simulations and you will work to increase gate fidelities and gate speeds. You will also participate in the realisation of quantum computer demonstrator device.

The Ion Quantum Technology Group at the University of Sussex, Brightonis one of the world's leading centres for the implementation of trapped ion quantum computing and simulation using microwave radiation. Microchips developed by the group provide state-of-the-art architectures for a large scale quantum computers, quantum simulators and quantum sensors. The group is part of the UK Quantum Technology Hub on Networked Quantum Technologies and the UK Quantum Technology Hub for Sensors and Metrology. The group currently spans 4 Postdoctoral Fellows, 14 PhD students and 6 undergraduate students. You will learn all the experimental skills and theoretical background needed in this emerging field of science. Some of the skills you will acquire include lasers and optics, ultra-high vacuum techniques, quantum information science, electronics and many other skills. The group is part of the Sussex Centre for Quantum Technologies.

The city of Brighton & Hove has everything - sun, sea, brilliant clubs, great places to eat, fabulous shops, a truly cosmopolitan vibe and is located only 50min from central London. Located on the beach, Brighton boasts beautiful seaside views and beaches, boating, sports and beach activities. The South Downs provide breathtaking views, tranquil walks and plenty of opportunities for mountain biking, hiking or picnics.

What you get

£14296 (2016-17) per year tax-free bursary plus the waiver of UK/EU fees each year for 3.5 years. Full-time study.

Type of award

Postgraduate Research

Eligibility

In order to qualify for this position you must have resided in the UK or Europe for three years prior to the start of the position. If you are from outside Europe, you may apply for a non-funded position in the group, however, you will need to have a funding source for tuition fees and living expense.

You should have a physics or related degree and you should enjoy interdisciplinary theoretical research with close connections to an experimental group.

Deadline

23 May 2016 23:59

How to apply

To apply please email a CV, and your degree results as soon as possible or the latest by 23/5/2016 to Prof. Winfried Hensinger at w.k.hensinger@sussex.ac.uk.

Sponsors

You can find out more about the group here (including a BBC documentary) here.

Detailled reading about our research can be found here, including:

  • Microwave ion-trap quantum computing, W.K. Hensinger, Nature 476, 155 (2011)
  • Trapped-ion quantum logic with global radiation fields, S. Weidt, J. Randall, S. C. Webster, K. Lake, A. E. Webb, I. Cohen, T. Navickas, B. Lekitsch, A. Retzker, and W. K. Hensinger, arXiv:1603.03384 [quant-ph] (2016)
  • Blueprint for a microwave ion trap quantum computer, B. Lekitsch, S. Weidt, A.G. Fowler, K. Mølmer, S.J. Devitt, Ch. Wunderlich, and W.K. Hensinger, arXiv:1508.00420 [quant-ph] (2015)

Contact us

For more information, please email the head of group,

Prof. Winfried Hensinger (Professor of Quantum Technologies) at w.k.hensinger@sussex.ac.uk.

Timetable

Early application is advised as the position will be filled as soon as a suitable candidate can be found. The very latest we can accept applications is 23/5/2016

Availability

At level(s):
PG (research)

Application deadline:
23 May 2016 23:59 (GMT)
the deadline has now expired