Recent Advances in Metrology and Fundamental Constants: Varenna on Lake Como, Villa Monastero, 25 July-4 August 2000

Front Cover
IOS Press, 2001 - Science - 827 pages
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.
 

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Contents

The XRCD method
3
T J QUINN The organization of metrology
11
MILLS Physical quantities and units
27
S LESCHIUTTA Metrology and the logic of physics
51
B W PETLEY I The fundamental constants and physics
93
pag 575
117
B W PETLEY II The fundamental constants and metrology
121
B W PETLEY III The Planck constant
157
Definition by a wavelength 19601983
455
PHYSICS AND FUNDAMENTAL METROLOGY
495
Advances in the establishment of a metric in a measuring device
523
N P Fox Developments in optical radiometry
537
Introduction
599
Tests of the Equivalence Principle
609
Guide
689
SERGIENKO Quantum metrology with entangled photons
715

pag
177
B JECKELMANN The quantum Hall effect and its application in metrology
263
Measurement techniques
271
Dimensional metrologygeneral approach and advances
759
Elenco dei partecipanti
816
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