New limit on lorentz violation using a double-pass optical ring cavity

Yuta Michimura, Nobuyuki Matsumoto, Noriaki Ohmae, Wataru Kokuyama, Yoichi Aso, Masaki Ando, Kimio Tsubono

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


A search for Lorentz violation in electrodynamics was performed by measuring the resonant frequency difference between two counterpropagating directions of an optical ring cavity. Our cavity contains a dielectric element, which makes our cavity sensitive to the violation. The laser frequency is stabilized to the counterclockwise resonance of the cavity, and the transmitted light is reflected back into the cavity for resonant frequency comparison with the clockwise resonance. This double-pass configuration enables a null experiment and gives high common mode rejection of environmental disturbances. We found no evidence for odd-parity anisotropy at the level of δc/c 10-14. Within the framework of the standard model extension, our result put more than 5 times better limits on three odd-parity parameters κËœo+JK and a 12 times better limit on the scalar parameter κËœtr compared with the previous best limits.

Original languageEnglish
Article number200401
JournalPhysical review letters
Issue number20
Publication statusPublished - 2013 May 13
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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