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Testing Lorentz Invariance Using an Odd-Parity Asymmetric Optical Resonator
Fred Baynes, Andre Luiten, Michael Tobar
We present the first experimental test of Lorentz invariance using the frequency difference between counter-propagating modes in an asymmetric odd-parity optical resonator. This ty…
Microwave cavity hidden sector photon threshold crossing
Rhys G. Povey, John G. Hartnett, Michael E. Tobar
Hidden sector photons are a weakly interacting slim particle arising from an additional U(1) gauge symmetry predicted by many standard model extensions. We present and demonstrate…
High Q-factor Sapphire Whispering Gallery Mode Microwave Resonator at Single Photon Energies and milli-Kelvin Temperatures
Daniel L. Creedon, Yarema Reshitnyk, Warrick Farr +3
The microwave properties of a crystalline sapphire dielectric whispering gallery mode resonator have been measured at very low excitation strength (E/hf=1) and low temperatures (T…
Cavity Bounds on Higher-Order Lorentz-Violating Coefficients
Stephen R. Parker, Matthew Mewes, Michael E. Tobar +1
We determine the sensitivity of a modern Michelson-Morley resonant-cavity experiment to the higher-order nonbirefringent and nondispersive coefficients of the Lorentz-violating Sta…
Resonant Regeneration in the Sub-Quantum Regime -- A demonstration of fractional quantum interference
John G. Hartnett, Joerg Jaeckel, Rhys G. Povey +1
Light shining through wall experiments (in the optical as well as in the microwave regime) are a powerful tool to search for light particles coupled very weakly to photons such as…