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Ion Quantum Technology at Sussex...

 

Welcome to the web page of the Ion Quantum Technology group at the University of Sussex, Brighton, UK. The group is headed by Dr Winfried Hensinger. Our aim is to develop new quantum technologies, in particular, the ion trap quantum computer. For this purpose our research focuses on applied experimental quantum information science, development of new scalable methods to build ion trap arrays and the interchange of quantum information in general. Our second research area is the exploration of quantum phenomena, their connection to our "classical" world and as well as the exploration of the foundations of quantum mechanics. One of our interests is the interaction of atomic and condensed matter systems in the quantum domain. An interview about the general research directions can be found here.

Our group forms close links with the Trapped Ion Quantum Computing group of Prof. Christopher Monroe at the University of Maryland and the Ion Cavity QED group of Prof. Wolfgang Lange at the University of Sussex and we are part of the broader AMO research group at the University of Sussex.

See also

Latest news

 

January 2010: Details on the 2010 European Conference on Trapped Ions (ECTI 2010) can be found here.

December 2009: A 3.5 year PhD position is available. More details can be found here.

July 2009: Winfried Hensinger has been awarded the title of Reader.

June 2009: Ben Jacques-Parr is the recipient of the departmental Pamela Rothwell prize for an outstanding BSc. research project.

June 2009: The IQT group received a grant from the Sussex Enterprise Development Fund to commercialize a specialized laser.

May 2009: Teaching quantum mechanics with electric guitars, more info here.

October 2008: Winfried Hensinger has been appointed London Technology Network Business Fellow to foster links between university research and industry.

July 2008: Winfried Hensinger has been awarded an EPSRC Leadership Fellowship with full economic cost value of £1.4M for the development of quantum technology with nanofabricated ion trap chips. A  postdoctoral position (up to 5 years) and a number of PhD scholarships are available. Please get in touch if you are interested.

June 2008: Marcus Hughes is the recipient of the departmental prize for an outstanding Master of Physics research project.

March 2008: Interview with Winfried Hensinger on UK Future TV about the general research directions of the group.

September 2007: Lab picture section on the web site is added, click here

August 2007: Rajiv Ramasawmy is featured on the cover of the departmental prospectus featuring lasers in the mist (in our lab).

July 2007: Jessica Grove-Smith is the co-recipient of the departmental prize for an outstanding Master of Physics research project.

June 2007: First lasers are operating and the overhang for the optical table is completed.

April 2007: Dan Brown, Nik Davies, Jack Friedlander, Jessica Grove-Smith, Ben Pruess, David Scrivener and Tim Short successfully complete their undergraduate research projects.

15 March 2007: New group picture

5 March 2007: The optical table has arrived.

1 October 2006: 4 graduate students and 8 undergraduate research project students join the group.

1 July 2006: Lab is nearly finished, equipment will be ordered soon.

10 December 05 until March 2006: Collaborative research at the University of Michigan

23 September 2005: Arrival in Sussex

9 December 2009: Single ytterbium ions are trapped in an experimental setup particularly designed for the development of advanced ion trap chips. This setup allows for rapid turn-around time, optical access for all type of ion trap chips and up to 100 electric interconnects. The particular ion trap used features an ion - electrode distance of 300 microns and we observed an ion life time of more than 1 hour. Below is a picture of the first three-ion crystal.

University of Sussex Press Release

Physics Department news update

March 2008: Article on the transport of ions in large scale multi-dimensional ion trap arrays is published in "Quantum Information & Computation".

Manuscript: On the Transport of Atomic Ions in Linear and Multidimensional Ion Trap Arrays.

6 Sep 06: Measurement of motional decoherence scaling for an ion trap with moveable electrodes, demonstrated significant suppression of patch potential heating, demonstrated ion trap with 23 microns ion-electrode spacing in experiments at the University of Michigan published in Physical Review Letters.

University of Sussex Press Release

Manuscript

Ion between movable needle electrodes

4 Aug 2006: Efficient photoionization of neutral atoms with pico- and nanosecond pulses for loading ion traps. Manuscript

17/01/06: Experiments carried out at the University of Michigan reporting first two-dimensional shuttling operations including corner-turning and swapping two ions inside a T-junction published in Applied Physics Letters.

University of Sussex Press Release

Journal Link 

Manuscript

11 Dec 05: Integrated ion chip experiments at the University of Michigan published in Nature Physics.

University of Sussex Press Release

University of Michigan Press Release

Nature Physics Press Release

Nature Physics Manuscript

AIP Physics News Update: A Scalable Quantum Computer Chip

Integrated ion chip Swapping two ions

 

Sussex Ion Quantum Technology Group

 

Undergraduate Jim Sayers aligning lasers 

 

Acknowledgements

 

We gratefully acknowledge funding from:

the Engineering and Physical Sciences Research Council (EPSRC),

the European Commission Marie-Curie Sixth Framework programme,

the Nuffield Foundation,

and the University of Sussex

 

 

 

 

 

 

 

 

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