Title :
Proposed Laboratory Tests of Time-Variation of the Fundamental Constants using the Ensemble of Frequency Standards at NPL
Author :
Lea, S.N. ; Flowers, J.L.
Author_Institution :
National Phys. Lab., Middlesex
Abstract :
Comparisons between atomic frequency standards can provide stringent experimental limits to the present-day local variation of the fundamental constants. We analyse the potential sensitivity of the constants of the ensemble of standards under development at NPL to such variations. Femtosecond combs provide the enabling technology for the proposed tests
Keywords :
constants; frequency standards; high-speed optical techniques; NPL; atomic frequency standards; femtosecond combs; fundamental constants; potential sensitivity; Atom optics; Charge carrier processes; Electrons; Frequency; Laboratories; Optical resonators; Optical sensors; Particle beam optics; Standards development; Testing;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305438
