Title :
Atoms in precision electromagnetic measurements
Author_Institution :
Dept. of Phys., Keio Univ., Yokohama, Japan
fDate :
4/1/1989 12:00:00 AM
Abstract :
Past, present, and future roles of atoms in precision electromagnetic measurements are discussed. In particular, atomic frequency standards, the current definition of the meter, the Josephson voltage, and the quantized Hall resistance are reviewed. Laser cooling and trapping of atoms are discussed with emphasis on a proposal of further cooling the atoms to a temperature of microkelvins and nanokelvins by utilizing the dipole force rather than the scattering force
Keywords :
Josephson effect; atomic beams; cooling; electric resistance measurement; frequency measurement; laser beam applications; length measurement; measurement standards; quantum Hall effect; units (measurement); voltage measurement; Josephson voltage; atomic frequency standards; dipole force; laser cooling; meter; microkelvins; nanokelvins; quantized Hall resistance; trapping of atoms; Atom lasers; Atomic beams; Atomic clocks; Atomic measurements; Cooling; Electromagnetic measurements; Electromagnetic scattering; Proposals; Temperature; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
