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Atomic Physics Programs & Projects

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Quantum Physics Theory
Last Updated Date: 04/29/2014

Theoretical work relevant to the determination of values of the fundamental constants, tests of bound-state quantum electrodynamics (QED), and … more

Energy Determination of X-Ray Transition Energies Using the NIST TES Microcalorimeter Detector
Last Updated Date: 10/02/2012

Previous efforts to produce a comprehensive tabulation of atomic x-ray transition energies have been hampered by the fact that a) detectors having … more

Molecular Orbital Structure of Energetic Nitrogen Compounds from X-Ray Emission Spectroscopy
Last Updated Date: 10/02/2012

When chemical compounds of low-Z elements are excited by x-rays, the ionized core states are filled from the valence band. The molecular orbital … more

Ultracold atoms and molecules
Last Updated Date: 12/08/2011

Theory for ultracold atomic and molecular collisions and interactions is being developed and exploited to gain precise control over these … more

Atomic Wavefunctions
Last Updated Date: 10/05/2010

NIST scientists are actively developing new algorithms for extremely high-accuracy computation of non-relativistic eigenstates of … more

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