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Primary Atomic Frequency Standards at NIST.

D B Sullivan¹, J C Bergquist¹, J J Bollinger¹

¹National Institute of Standards and Technology, Boulder, CO 80305-3328.

Journal of Research of the National Institute of Standards and Technology

|August 9, 2016

Summary

This summary is machine-generated.

NIST has developed advanced atomic frequency standards, achieving a record low uncertainty of 1.5×10(-15). This research details key technologies and their latest implementations for precise timekeeping.

Keywords:

atomic clock atomic frequency standard cesium-beam frequency standard cesium-fountain frequency standard clock fountain frequency standard frequency frequency standard ion frequency standard laser-cooling of atoms stored-ion frequency standard time

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Area of Science:

Metrology
Atomic Physics
Quantum Technology

Background:

Atomic frequency standards are crucial for modern technology and scientific research.
The National Institute of Standards and Technology (NIST) has a long history of developing advanced timekeeping technologies.

Purpose of the Study:

To discuss the development of atomic frequency standards at NIST.
To describe three key frequency-standard technologies and their recent NIST implementations.

Main Methods:

Detailed description of NIST's latest implementations for three leading atomic frequency standard technologies.
Comparative analysis of NIST standards' uncertainties against international benchmarks.

Main Results:

Achieved a best relative standard uncertainty of 1.5×10(-15) for a NIST frequency standard.
Demonstrated the performance of NIST's advanced atomic clock technologies.

Conclusions:

NIST continues to lead in the development of high-precision atomic frequency standards.
The latest NIST standards exhibit world-class performance and uncertainty levels.