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New limit on signals of Lorentz violation in electrodynamics.

作者信息

Lipa J A, Nissen J A, Wang S, Stricker D A, Avaloff D

机构信息

Physics Department, Stanford University, Stanford, California 94305, USA.

出版信息

Phys Rev Lett. 2003 Feb 14;90(6):060403. doi: 10.1103/PhysRevLett.90.060403. Epub 2003 Feb 12.

DOI:10.1103/PhysRevLett.90.060403
PMID:12633280
Abstract

We describe the results of an experiment to test for spacetime anisotropy terms that might exist from Lorentz violations. The apparatus consists of a pair of cylindrical superconducting cavity-stabilized oscillators operating in the TM010 mode with one axis east-west and the other vertical. Spatial anisotropy is detected by monitoring the beat frequency at the sidereal rate and its first harmonic. We see no anisotropy to a part in 10(13). This puts a comparable bound on four linear combinations of parameters in the general standard model extension, and a weaker bound of < 4 x 10(-9) on three others.

摘要

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