03988nam 2200661 450 991025738260332120220322095108.03-540-40991-210.1007/b13178(CKB)1000000000231248(SSID)ssj0000321446(PQKBManifestationID)11232822(PQKBTitleCode)TC0000321446(PQKBWorkID)10279846(PQKB)11220143(DE-He213)978-3-540-40991-5(MiAaPQ)EBC6670422(Au-PeEL)EBL6670422(OCoLC)268606443(PPN)155220993(EXLCZ)99100000000023124820220322d2004 uy 0engurnn|008mamaatxtccrAstrophysics, clocks and fundamental constants /edited by S. G. Karshenboim, E. Peik1st ed. 2004.Berlin, Germany ;New York, New York :Springer,[2004]©20041 online resource (XVIII, 347 p.) Lecture Notes in Physics,0075-8450 ;648"Invited reviews presented at an international conference "Astrophysics, Clocks and Fundamental Constants" organized as the 302nd WE-Heraeus-Seminar which took place in June, 2003, in Bad Honnef"--Pref.3-540-21967-6 Includes bibliographical references and index.Evolution of the Universe -- Quantum Gravity and Fundamental Constants -- Physics and Metrology -- Search for New Physics with Atomic Clocks -- Cold Atom Clocks and Fundamental Tests -- 30 Years of Testing the PPN parameters -- Cryogenic Optical Resonators -- Absorption Spectra -- Variability of the Fine-Structure Constant -- Millesecond Pulsars? Tools of Fundamental Physics -- Constants, Units and Standards -- Time Varying Fundamental Constants, Extra Dimensions and the Renormalization Group -- A Time Dependence of the QCD Scale -- Towards More Sensitive Measurements with Optical Clocks -- Search for Variations of Fundamental Constants using Precision Spectroscopy of Atomic Hydrogen -- A New Era in Precision Molecular Spectroscopy -- Yb+ Optical Frequence Standard -- In+ Trapped Ion Optical Frequency Standard -- An Optical Frequency Standard with Cold Calcium Atoms -- Atom Optics: A Versatile Tool for New Quantum Sensors in Space.In 1937 the question of a possible temporal variation of the fundamental constants was raised by Paul Dirac in his "large number hypothesis." Today it appears in the context of the search for a unified theory of the fundamental interactions. It touches both fundamental and applied physics, as the postulated unalterability of the constants is the foundation for modern metrology. The book presents reviews written by leading experts in the field. Focussing on the question of variations of the fundamental "constants" in time or space, the chapters cover the theoretical framework in which variations are expected and the search for variations of quantities such as the fine-structure constant, the electron/proton mass ratio, g-factors of proton and neutron etc. in astrophysical and geophysical observations and in precision experiments with atomic clocks and frequency standards.Lecture Notes in Physics,0075-8450 ;648Physical constantsCongressesMetrologyCongressesMeasurementCongressesAstrophysicsCongressesPhysical constantsMetrologyMeasurementAstrophysics530.81Peik E(Ekkehard),Karshenboim S. G(Savely G.),1960-W.E. Heraeus SeminarMiAaPQMiAaPQMiAaPQBOOK9910257382603321Astrophysics, clocks and fundamental constants670042UNINA00948nam1 22002531i 450 VAN005232320110124120736.43820060914g1986 |0itac50 baitaENGIT|||| |||||Atlante storico delle città italianediretto da Francesca Bocchi e da Enrico Guidoni[S. l.]Commission internationale pour l'histoire des villes-Comitato italiano1986-v.40 cm.001VAN00523242001 ToscanaCittàSistemazione urbanisticaItaliaStoriaVANC008621FI711.4094521BocchiFrancescaVANV032293GuidoniEnricoVANV021026Commission internationale pour l'histoire des villes-Comitato italianoVANV111403650ITSOL20230616RICAVAN0052323Atlante storico delle città italiane756832UNICAMPANIA