22–26 Sept 2025
Europe/Lisbon timezone

Axion Polarimeteric Experiment (APE)

23 Sept 2025, 10:00
6m

Speaker

Qazal Rokn (Maxplanck institute for gravitational physics)

Description

Axion and axion-like particles are hypothesized to interact with photons, inducing a time-varying
rotation in the polarization of linearly polarized laser light. This work presents a highly sensitive
apparatus designed to detect this rotation. The setup employs a polarimetry configuration featuring
two quarter-wave plates inside a Fabry-P´erot cavity, allowing us to investigate unexplored regions
of the parameter space, the mass range of (< 10−12 eV), and potentially detect a signal. A further
increase in sensitivity can be achieved by using a longer cavity.

Author

Qazal Rokn (Maxplanck institute for gravitational physics)

Presentation materials