Comment on "Test of constancy of speed of light with rotating cryogenic optical resonators"
Abstract
A recent experiment by Antonini et. al. [Phys. Rev. A {\bf 71}, 050101R 2005], set new limits on Lorentz violating parameters in the frame-work of the photon sector of the Standard Model Extension (SME),
κ
~
ZZ
e−
, and the Robertson-Mansouri-Sexl (RMS) framework,
β−δ−1/2
. The experiment had significant systematic effects caused by the rotation of the apparatus which were only partly analysed and taken into account. We show that this is insufficient to put a bound on
κ
~
ZZ
e−
and the bound on
β−δ−1/2
represents a five-fold improvement not a ten-fold improvement as claimed.
(For reply see Phys. Rev. A 72, 066102 (2005) DOI: 10.1103/PhysRevA.72.066102)