View from the Inside

27 Jeff Salvail 2014
Image courtesy of Jeff Salvail, Simon Fraser University

An artistic view of the inside of the highly purified crystal of silicon. The red atom is a single impurity, called a donor. The atom may be phosphorous, arsenic or antimony. The small blue sphere is the additional electron brought into the crystal by the donor. We use the spin of donors in silicon, and their electrons, as quantum bits.

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