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# Quantum Physics; Nanoscale Assembly; Atomic Anchors

These two images show the energy levels (vertical scale) and spatial positions (white lines) of electrons within a three-atom chain. The top image shows the calculated or theoretical results; the bottom image shows the measured energy levels in a physical experiment. Electrons are most likely to be located in the red areas and least likely in the blue areas. Both images indicate that the electrons in the outermost atoms (positioned on the far left and right at the bottom on the vertical scales) have lower energy than those within the center atom.

*PHY, atom chains, electron physics, end states, quantum mechanics, self assembly, scanning tunneling microscopy, STM,

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February 14, 2005

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