Quantum Metrology And Fundamental Constants
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Quantum Metrology And Fundamental Physical Constants
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Author : A.A. Lucas
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-01
Quantum Metrology And Fundamental Physical Constants written by A.A. Lucas and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-01 with Science categories.
The object of this NATO Advanced Study Institute was to pre sent a tutorial 'introduction both to the basic physics of recent spectacular advances achieved in the field of metrology and to the determination of fundamental physical constants. When humans began to qualify their description of natural phenomena, metrology, the science of measurement, developed along side geometry and mathematics. However, flam antiquity to modern times, the role of metrology was mostly restricted to the need of commercial, social or scientific transactions of local or at most national scope. Beginning with the Renaissance, and particularly in western Europe during the last century, metrology rapidly developed an international character as a result of growing needs for more accurate measurements and common standards in the emerging indus trial society. Although the concerns of metrology are deeply rooted to fundamental sciences, it was, until recently, perceived by much of the scientific community as mostly custodial in character.
Quantum Metrology And Fundamental Constants
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Author : F. Piquemal
language : en
Publisher:
Release Date : 2009
Quantum Metrology And Fundamental Constants written by F. Piquemal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Physical measurements categories.
Recent Advances In Metrology And Fundamental Constants
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Author : T.J. Quinn
language : en
Publisher: IOS Press
Release Date : 2001-12-18
Recent Advances In Metrology And Fundamental Constants written by T.J. Quinn and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-12-18 with Science categories.
The exchange between physics and metrology is always fascinating and exciting. Many are the open problems in physics that call for extremely precise standards, many are the advances in metrology made possible by a deep and assiduous study of the underlying physics. One has just to think of the enormous sophistication required in the measurements of some absolute quantities such as the Avogadro, the gas, or the gravitational constants. It is also worth noticing that not only the units of a metrological system are interrelated through the fundamental constants, but also the latter find their full significance when they are determined through the most exacting metrological experiments. Over the past decade many improvements took place and these are discussed in this book; from one side the old caesium SI second definition has found a new realisation, with the “fountain” approach, replacing the classical thermal atomic beam. The use of “cold” atom techniques, in which bunches of inert atoms are collected, slowed down, and cooled, has opened a number of new and unexpected avenues for metrology and fundamental constants; one of these possibilities being the atom interferometry. Another important “quantum jump” was the demonstration of the possibility of performing a direct frequency division in the visible, using ultra short femtosecond pulses. In addition, the possibility of “counting” electrons or photons gave a fundamental support to the development of single-electron capacitance standards and to new scenarios in the absolute calibration of photo-detectors.
Introduction To Quantum Metrology
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Author : Waldemar Nawrocki
language : en
Publisher: Springer
Release Date : 2015-03-24
Introduction To Quantum Metrology written by Waldemar Nawrocki and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-24 with Technology & Engineering categories.
This book presents the theory of quantum effects used in metrology and results of the author’s own research in the field of quantum electronics. The book provides also quantum measurement standards used in many branches of metrology for electrical quantities, mass, length, time and frequency. This book represents the first comprehensive survey of quantum metrology problems. As a scientific survey, it propagates a new approach to metrology with more emphasis on its connection with physics. This is of importance for the constantly developing technologies and nanotechnologies in particular. Providing a presentation of practical applications of the effects used in quantum metrology for the construction of quantum standards and sensitive electronic components, the book is useful for a wide audience of physicists and metrologists in the broad sense of both terms. In 2014 a new system of units, the so called Quantum SI, is introduced. This book helps to understand and approve the new system to both technology and academic community.
Quantum Metrology And Fundamental Physical Constants
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Author : PH Cutler (ed)
language : en
Publisher:
Release Date : 1983
Quantum Metrology And Fundamental Physical Constants written by PH Cutler (ed) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Precision Measurement And Fundamental Constants Proceedings
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Author : Barry N. Taylor
language : en
Publisher:
Release Date : 1971
Precision Measurement And Fundamental Constants Proceedings written by Barry N. Taylor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Physical measurements categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1968
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Weights and measures categories.
Frequency Standards And Metrology
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Author : Andrea De Marchi
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Frequency Standards And Metrology written by Andrea De Marchi and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Since the previous Symposium, several exciting new developments and advances have occurred in the field of frequency standards and metrology. These include the first results on the long-tenn stability of a millisecond Pulsar, for which data 14 integrated over several years now show a stability of around 10- . Improvements in the understanding of various biases in Cesium beam standards promise accuracies in the low 14s for primary standards and in the low 13s for short commercial tubes, for which long tenn stabilities in low 14s have already been shown to be obtainable by accuracy improvement. Beams using optical pumping for state selection and for detection have been operated with excellent results, and more are being realized. Other new frequency standards which have appeared include a macroscopic rf trap with Mercury ions, which perfonns in the low 15s in one day, the sub millimeter metastable Magnesium beam, which has shown a short tenn stability 19 in the low 12s in one second and promises an accuracy of 10- , and the cold Hydrogen masers, which have such high stabilities that they cannot be measured with existing local oscillators. Prospects for future developments include laser manipulation of neutrals and spectroscopy of single ions at rest in a trap. Both these groups of techniques have great potential for unprecedented accuracy and short-and long-tenn stability, and new superior frequency standards are expected to be realizable in this way in the not too distant future.
Handbook Of Metrology
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Author : Michael Gläser
language : en
Publisher: John Wiley & Sons
Release Date : 2010-06-08
Handbook Of Metrology written by Michael Gläser and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-08 with Science categories.
Metrology is the study of measurement. It includes all theoretical and practical aspects of measurement and may be divided into three subfields: Scientific or fundamental metrology concerns the establishment of measurement units, unit systems, development of new measurement methods, realization of measurement standards and the transfer of traceability from these standards to users in society. This handbook contains articles dealing with general topics of measurement and articles on particular subjects in mechanics and acoustics, electricity, optics, temperature, time and frequency, chemistry, medicine and particles. The contributions of the first part are sumamrized as follows. Introduction Units Fundamental Constants Fundamentals of Materials Measurement and Testing Measurement of Mass Desnity Measurement and Instrumentation of Flow Ultrasonics Measurement of Basic Electromagnetic Quantities Quantum Electrical Standards Metrology of Time and Frequency Temperature Measurement Metrology in Medicine
Publications Of The National Institute Of Standards And Technology Catalog
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Author : National Institute of Standards and Technology (U.S.)
language : en
Publisher:
Release Date : 1985
Publications Of The National Institute Of Standards And Technology Catalog written by National Institute of Standards and Technology (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.