Speaker
Hajime Fukuda
Description
The axion has an exact 2pi shift symmetry. The symmetry is a redundancy of the system and the axion can be regarded as a gauge Boson of the redundancy. From this point of view, the axion interaction is the so-called Chern-Simons term, behind which rich dynamics are known to be.
I will review the axion as the gauge Boson and introduce our work on dynamics of the axion in terms of the Chern-Simons theory, which had been less known before.
