Download Astrophysics, Clocks and Fundamental Constants by Savely G. Karshenboim, Ekkehard Peik PDF

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By Savely G. Karshenboim, Ekkehard Peik

In 1937 the query of a potential temporal edition of the elemental constants was once raised via Paul Dirac in his "large quantity hypothesis." this present day it seems that within the context of the quest for a unified conception of the elemental interactions. It touches either basic and utilized physics, because the postulated unalterability of the constants is the root for contemporary metrology. The booklet offers reports written via top specialists within the box. Focussing at the query of diversifications of the elemental "constants" in time or house, the chapters hide the theoretical framework within which diversifications are anticipated and the hunt for diversifications of amounts reminiscent of the fine-structure consistent, the electron/proton mass ratio, g-factors of proton and neutron and so forth. in astrophysical and geophysical observations and in precision experiments with atomic clocks and frequency standards.

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Lett. 89, 230801 (2002). 37. J. Stenger, C. Tamm, N. Haverkamp, S. Weyers, and H. R. Telle, Opt. Lett. 26, 1589 (2001). 38. E. Peik, B. Lipphardt, H. Schnatz, T. Schneider, Chr. Tamm, eprint physics/0402132. See also [9] for details. 39. T. Udem, S. A. Diddams, K. R. Vogel, C. W. Oates, E. A. Curtis, W. D. Lee, W. M. Itano, R. E. Drullinger, J. C. Bergquist, and L. Hollberg, Phys. Rev. Lett. 86, 4996 (2001). 40. S. Bize, S. A. Diddams, U. Tanaka, C. E. Tanner, W. H. Oskay, R. E. Drullinger, T. E.

Vol. 2. (A. Hilger, Bristol, Philadelpia, 1989). A. Bauch, S. Weyers, Phys. Rev. D 65, 081101(R) (2002). Part I Time and the Universe Gerhard B¨ orner Max-Planck-Institut f¨ ur Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany Abstract. The cosmological parameters are well defined now, after the satellite WMAP has measured anisotropies in the cosmic microwave background with high accuracy. Adding to this the information from the Hubble diagram of type Ia supernovae, and from the analysis of the large scale galaxy distribution, we find that we live in a Universe that undergoes accelerated expansion.

Degenhardt, U. Sterr, J. Helmcke, and F. Riehle, Phys. Rev. Lett. 89, 230801 (2002). 37. J. Stenger, C. Tamm, N. Haverkamp, S. Weyers, and H. R. Telle, Opt. Lett. 26, 1589 (2001). 38. E. Peik, B. Lipphardt, H. Schnatz, T. Schneider, Chr. Tamm, eprint physics/0402132. See also [9] for details. 39. T. Udem, S. A. Diddams, K. R. Vogel, C. W. Oates, E. A. Curtis, W. D. Lee, W. M. Itano, R. E. Drullinger, J. C. Bergquist, and L. Hollberg, Phys. Rev. Lett. 86, 4996 (2001). 40. S. Bize, S. A. Diddams, U.

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