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History of Quantum Hero Image
Physics

Atomic / molecular / quantum

News and Updates

Projects and Programs

traceability chain illustration

Calibration of Mass Standards

Ongoing
The NIST Mass and Force Group disseminates the unit of mass, the kilogram, to the US measurement system through calibrations of customer weights and weight sets

The Research

traceability chain illustration

Calibration of Mass Standards

Ongoing
The NIST Mass and Force Group disseminates the unit of mass, the kilogram, to the US measurement system through calibrations of customer weights and weight sets

Additional Resources Links

Atomic Spectra Database
Atomic Spectroscopy Databases
Handbook of Basic Atomic Spectroscopic Data

Publications

Single-electron states of phosphorus-atom arrays in silicon

Author(s)
Maicol Ochoa, Keyi Liu, Michał Zieliński, Garnett W. Bryant
We characterize the single-electron energies and the wavefunction structure of arrays with two, three, and four phosphorus atoms in silicon by implementing

Benford's law in atomic spectra and opacity databases

Author(s)
Yuri Ralchenko, Jean-Christophe Pain
The intriguing law of anomalous numbers, also named Benford's law, states that the significant digits of data follow a logarithmic distribution favoring the

Awards