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Silicon for the 21st century

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  • UserProf. Gabriel Aeppli, UCL
  • ClockThursday 09 June 2011, 13:45-15:00
  • HouseTheory Library.

If you have a question about this talk, please contact Dr Dimitri M Gangardt.

20th century electronics is based on the motion of electrons through silicon and these electrons are donated by chemical impurities such as phosphorous deliberately introduced into the silicon host. Laser cooling and electromagnetic traps have led to a revolution in atomic physics, yielding dramatic discoveries ranging from Bose-Einstein condensation to quantum control of single atoms. For the quantum control which is needed to meet the challenges of computation in the 21st century, silicon can also be thought of as an atom trap. We describe here the beginnings of the science of silicon as atom trap, where the trapped atoms are the donor impurities. Key tools, enabling the visualization and manipulation of the impurity quantum states, are free electron lasers and scanning tunneling microscopes.

This talk is part of the Theoretical Physics Seminars series.

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