Recent Advances in Metrology and Fundamental Constants

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Recent Advances in Metrology and Fundamental Constants is written by Terry J. Quinn and published by IOS Press. It's available with International Standard Book Number or ISBN identification 1586031678 (ISBN 10) and 9781586031671 (ISBN 13).

Over the last decade of the 20th century, many improvements took place in the field of metrology and fundamental constants. These developments and improvements are discussed in this book. The old caesium SI second definition has found a new realization with the fountain approach, replacing the classical thermal atomic beam. The use of cold atom techniques, slowed down and cooled, has opened a number of unexpected avenues for metrology and fundamental constants, one of these possibilities being the atom interferometry. Another development was the demonstration of the possiblility of performing a direct frequency division in the visible, using short femtosecond pulses. Many other developments are also discussed.