Laser Gyroscopes, Gravity, and the SME
  In this contribution to the CPT'16 proceedings, we illustrate the potential use of ring-laser systems in searching for Lorentz violation in the framework of the Standard-Model Extension. We present expressions for the Lorentz-violating contribution to the ring-laser signal for a sample system and make sensitivity estimates for the GINGER project. 
Nicholas Scaramuzza and Jay D. Tasson
gr-qc hep-ph