The OVAL experiment: A new experiment to measure vacuum magnetic birefringence using high repetition pulsed magnets

Understand

A new experiment to measure vacuum magnetic birefringence (VMB), the OVAL experiment, is reported.

• We developed an original pulsed magnet that has a high repetition rate and applies the strongest magnetic field among VMB experiments.
• The vibration isolation design and feedback system enable the direct combination of the magnet with a Fabry-P\'erot cavity.
• To ensure the searching potential, a calibration measurement with dilute nitrogen gas and a prototype search for vacuum magnetic birefringence are performed.