Searching for Ultra-Light Axions with Twisted Cavity Resonators of Anyon Rotational Symmetry with Bulk Modes of Non-Zero Helicity
This work introduces 'anyon cavity resonators' based on twisted hollow structures to create bulk electromagnetic modes with non-zero electromagnetic helicity in a vacuum. These unique modes naturally couple to ultralight dark matter axions via amplitude modulation, eliminating the need for external magnetic fields. This enables ultra-sensitive searches for ULDM axions using low-loss superconducting resonators.