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As part of a revised SI system of units adopted in 2019, the kilogram was redefined to be realized in terms of Planck's constant. By experimental necessity
NIST Standard Reference Database 173 Last Update to Data Content: August 2023 DOI: https://doi.org/10.18434/T4M88Q The Standard Reference Simulation Website is
Focused beams of ions have a wide range of uses, from nanoscale imaging to the fabrication of nanomaterials. We are developing novel cold-atom based ion sources
PRIME (Platform for Realizing Integrated Molecule Experiments) aims to establish primary, quantum-based realizations for both the radiometric watt and kelvin
Since 1970, the National Institute of Standards and Technology (NIST) has awarded Precision Measurement Grants for significant research in the field of
Our research focuses on the use of quantum logic techniques to prepare, control, and measure the rovibrational and electronic states of single trapped molecular
Quantum information processing seeks to use the features of quantum physics to accomplish otherwise intractable computational tasks. The two main thrusts of
The coherent control of quantum-mechanical systems holds promise for revolutionizing computing. We develop new methods and technologies to improve the fidelity
Quantum networks, a promising resource for computing and sensing, generate useful entanglement between locations separated by geographic distances. Our research
Theoretical work relevant to the determination of values of the fundamental constants, tests of bound-state quantum electrodynamics (QED), and methods of
We use magnetic and electric fields in a Penning trap to confine two-dimensional Coulomb crystals of ions. We can perform quantum simulations of many-body spin
Physical disassembly of the 4.45 MN (1,000,000 lbf) deadweight machine (DWM) began in FY15 in order to address material galling that developed in key structural
We are characterizing Si-based single-electron quantum dots at low temperatures (down to 10 mK) to explore the possibility of quantum coherent manipulation in
We are working to fabricate and perform low-temperature measurements of CMOS-compatible single electron devices in silicon which could be used as a standard of
The small mass and force metrology project at NIST leverages the redefinition of the International System of Units (SI) to scale mass and force with electrical
Interactions between cold atoms can provide us with the means to manipulate matter on the smallest scales. Collisions between laser-cooled atoms, in particular
Sensitive and fully state resolved spectroscopic methods in the terahertz (THz) and ultraviolet (UV) regions are being developed to investigate the structure
Mass spectrometry is an important technique in analytical chemistry, essential in areas including drug development, criminal and agricultural forensics
The pursuit of fundamental limits in frequency metrology has historically motivated the development of groundbreaking techniques such as laser cooling and spin