U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 2001 - 2025 of 4260

Time Measurement at the Millennium

March 1, 2001
Author(s)
James C. Bergquist, Steven R. Jefferts, David J. Wineland
… The latest clocks use a single ion to measure time with an anticipated precision of on part …

Quantum harmonic oscillator spectrum analyzers

June 25, 2021
Author(s)
Jonas Keller, Panyu Hou, Katherine C. McCormick, Daniel Cole, Stephen Erickson, Jenny Wu, Andrew C. Wilson, Dietrich Leibfried
… drives with a qubit. Using the motion of a trapped ion, we experimentally demonstrate two different … our method to measure the intrinsic noise spectrum of an ion trap potential in a previously unaccessed frequency range. …

Round-Robin Study of Implants in Si and SiO 2 by SIMS, RBS, and NAA

December 31, 1990
Author(s)
Peter Roitman, David S. Simons, P Chi, Richard M. Lindstrom, G. E. Lux, S. Baumann, S. W. Novak, R. G. Wilson, D. Farrington, J. Keenan, F. A. Stevie, J. L. Moore, R. B. Irwin, A. J. Filo, C. W. Magee, R. Alcorn, D. File
… Proc., Seventh International Conference on Secondary Ion Mass Spectrometry (SIMS VII) …

Exponentially correlated Hylleraas-Configuration Interaction studies of atomic systems. III Upper and Lower Bounds to He-Sequence Oscillator Strengths for the Resonance singlet S to singlet P Transition

July 22, 2023
Author(s)
James S. Sims, Bholanath Padhy, Maria Ruiz
… the helium atom and on ground and excited S states of Li II), of whether wave functions containing both linear and … 1s2 1S states but 1s2p 1P states as well for the He I, Li II, Be III, C V and O VII members of the He isoelectronic …

Fire Safety of Passenger Trains. Phase 3. Evaluation of Fire Hazard Analysis Using Full-Scale Passenger Rail Car Tests (NISTIR 6563)

April 1, 2004
Author(s)
Richard D. Peacock, Jason D. Averill, Daniel M. Madrzykowski, D W. Stroup, Paul A. Reneke, Richard W. Bukowski
… the cone calorimeter (ASTM International E-1354). In Phase II, full-scale tests were conducted of selected interior … III interim report compares the results of Phases I and II of the research program, with a series of full-scale fire …

Quantum Monte Carlo for Difficult Systems

February 1, 2001
Author(s)
J A. Harkless, W A. Lester, Jr.
… studies of the propargyl radical, C 3 H 3 , peroxynitrite ion, ONOO-, nitrogen atom excited state transition energy, … nitrogen atom excited state transition, peroxynitrite ion, propargyl radical, QMC, quantum Monte Carlo, transition …
Displaying 2001 - 2025 of 4260
Was this page helpful?