Recent Advances in Metrology and Fundamental Constants: Varenna on Lake Como, Villa Monastero, 25 July-4 August 2000Over 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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accuracy achieved allows applied array atoms beam calculated calibration cavity charge clock coherent compared considered constant Convention cooling defined definition density dependence described determined developed device direction effect electric electron energy equations error example excited experimental experiments expressed field force frequency frequency standards fundamental constants given IEEE important improved intensity interaction International Josephson junctions laboratories laser length Lett light limit magnetic maser mass means Meas measurements method metrology microwave observed obtained operation optical phase Phys physics possible potential practical present produce pulse pump quantities quantum radiation range ratio realization reduced reference relative resistance resonance shift shown shows signal spectral stability standard step technique temperature theory Trans transfer transition trap uncertainty units Universe voltage wave
Bibliographic information
| Title | Recent Advances in Metrology and Fundamental Constants: Varenna on Lake Como, Villa Monastero, 25 July-4 August 2000 Volume 146 of Proceedings of the International School of Physics "Enrico Fermi", Scuola Internazionale di Fisica Enrico Fermi, ISSN 0074-784X Rendiconti della Scuola internazionale di fisica "Enrico Fermi |
| Author | Patrizia Tavella |
| Editors | Terry J. Quinn, T. J. Quinn, Sigfrido Leschiutta, Patrizia Tavella, Società italiana di fisica |
| Edition | illustrated |
| Publisher | IOS Press, 2001 |
| ISBN | 1586031678, 9781586031671 |
| Length | 827 pages |
| Subjects | › Science / General |
| Export Citation | BiBTeX EndNote RefMan |