Test of local position invariance using a double-cavity laser system

The results of testing local position invariance, which is a constituent of the Einstein equivalence principle, in a “null” gravitational redshift experiment are reported. The processing of the experimental data collected during the five-month operation of a double-c avity laser system, where one ca...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2010-01, Vol.110 (1), p.1-6
Main Authors: Agachev, A. R., Belov, I. Yu, Bochkarev, V. V., Daishev, R. A., Mavrin, S. V., Murzakhanov, Z. G., Skochilov, A. F., Chugunov, Yu. P., Shindyaev, O. P.
Format: Article
Language:English
Subjects:
ABSORPTION
ACCURACY
ALKANES
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
ATOMIC AND MOLECULAR PHYSICS
Atoms
Classical and Quantum Gravitation
DATA PROCESSING
ELECTROMAGNETIC RADIATION
Elementary Particles
EQUIVALENCE PRINCIPLE
GRAVITATION
HYDROCARBONS
LASER RADIATION
Lasers
Laws, regulations and rules
METHANE
MOLECULES
NONLINEAR PROBLEMS
Optics
ORGANIC COMPOUNDS
Particle and Nuclear Physics
Physics
Physics and Astronomy
PROCESSING
Quantum Field Theory
RADIATIONS
RED SHIFT
Relativity Theory
RESONANCE
Solid State Physics
SORPTION
TESTING
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Summary:The results of testing local position invariance, which is a constituent of the Einstein equivalence principle, in a “null” gravitational redshift experiment are reported. The processing of the experimental data collected during the five-month operation of a double-c avity laser system, where one cavity operates in the free generation mode and the frequency of the second cavity is stabilized with the nonlinear ultranarrow absorption resonance of the methane molecule, has confirmed the universality of the gravitational redshift law at a level of 0.9%. This result almost doubly improves the best existing accuracy (1.7%) of testing local position invariance for clocks of different physical natures.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776110010012