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Semiconductor Structures for Quantum Information Processing

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A number of new ways of manipulating information, generically known as quantum information processing, have been postulated in the last 15-20 years. Several have been demonstrated experimentally, but there remains a large gap between principle and practice, particularly in quantum computation. The success of solid-state electronics and optoelectronics in classical information processing leads many to the conclusion that condensed matter systems will provide the best way of bridging this gap.

I will describe some of our approaches to making solid-state structures for quantum information processing, including nanoscale silicon and III -V semiconductor devices. I will show recent experimental results, and discuss the various mechanisms which help and hinder the development of this field. There has been substantial progress in the last year, and I will give our view of the routes to making usable structures.

This talk is part of the Electron Microscopy Group Seminars series.

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