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Transcript
David Williams (University of Cambridge)
Semiconductor Structures for Quantum Information Processing
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 echanisms
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.