New limits on the drift of fundamental constants from laboratory measurements -: art. no. 230802

被引：353

作者：

Fischer, M

Kolachevsky, N

Zimmermann, M

Holzwarth, R

Udem, T

Hänsch, TW

Abgrall, M

Grünert, J

Maksimovic, I

Bize, S

Marion, H

Dos Santos, FP

Lemonde, P

Santarelli, G

Laurent, P

Clairon, A

Salomon, C

Haas, M

Jentschura, UD

Keitel, CH

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Observ Paris, BNM SYRTE, F-75014 Paris, France

[3] ENS, Lab Kastler Brossel, F-75005 Paris, France

[4] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[5] PN Lebedev Phys Inst, Moscow 117924, Russia

[6] Univ Munich, Munich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 23期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.230802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have remeasured the absolute 1S-2S transition frequency nu(H) in atomic hydrogen. A comparison with the result of the previous measurement performed in 1999 sets a limit of (-29+/-57) Hz for the drift of nu(H) with respect to the ground state hyperfine splitting nu(Cs) in Cs-133. Combining this result with the recently published optical transition frequency in Hg-199(+) against nu(Cs) and a microwave Rb-87 and Cs-133 clock comparison, we deduce separate limits on (alpha) over dot/alpha(-0.9+/-2.9)x10(-15) yr(-1) and the fractional time variation of the ratio of Rb and Cs nuclear magnetic moments mu(Rb)/mu(Cs) equal to (-0.5+/-1.7)x10(-15) yr(-1). The latter provides information on the temporal behavior of the constant of strong interaction.

引用

页码：230802 / 1

页数：4

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