Speaker
Vijay Narayan
(UC Berkeley)
Description
We propose a ``Light Shining Through Walls"-type experiment to search for axions with high-$Q$ superconducting RF cavities. Our setup uses a gapped toroid to confine a static magnetic field, with production and detection cavities positioned in regions of vanishing external field. We argue that the confining toroid does not significantly screen the axion-induced signal for frequencies of order the inverse toroid size. This allows both cavities to be superconducting with quality factors $Q \sim 10^{10}$, thus significantly improving the sensitivity of the experiment. Such a search has the potential to probe axion-photon coupling $\sim 2 \times 10^{-11} ~\GeV^{-1}$, comparable to the future ALPS II.
