Time and Frequency Division
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The Time and Frequency Division, part of the NIST Physics Laboratory, maintains the standard for frequency and time interval for the United States, provides official time to the United States, and carries out a broad program of research and service activities in time and frequency metrology.
NIST's Second "Quantum Logic Clock" is World's Most Precise Clock NIST scientists have built a second "quantum logic clock," using quantum information processing techniques on a single ion of aluminum to make a clock that would not gain or lose more than one second in about 3.7 billion years. For more information, please see http://www.nist.gov/physlab/div847/logicclock_020410.cfm.  
Yikes! NIST Sensor Measures Yoctonewton Forces FastPhysicists at the National Institute of Standards and Technology (NIST) have used a small crystal of ions (electrically charged atoms) to detect forces at the scale of yoctonewtons. Measurements of … 
Glasperlenspiel: NIST Scientists Propose New Test for GravityA new experiment proposed* by physicists at the National Institute of Standards and Technology (NIST) may allow researchers to test the effects of gravity with unprecedented precision at very short … 
Novel Ion Trap with Optical Fiber Could Link Atoms and Light in Quantum NetworksPhysicists at the National Institute of Standards and Technology (NIST) have demonstrated an ion trap with a built-in optical fiber that collects light emitted by single ions (electrically charged … 
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General Information: NIST Time and Frequency Division |
