Description
中山大学 深圳校区 西教学楼 201
Dr
lang liu
(Beijing Normal University)
13/04/2024, 14:25
The recently released data by pulsar timing array collaborations present strong evidence for a stochastic signal consistent with a gravitational-wave background. In this talk, I will discuss some implications for scalar-induced gravitational waves with pulsar timing arrays.
Rui-jia Zhang
(Nankai University)
13/04/2024, 15:15
The Witten effect implies the electromagnetic interactions between axions and magnetic monopoles. Based on the quantum electromagnetodynamics, a generic low-energy axion-photon effective field theory was built by introducing two four-potentials ($A^\mu$ and $B^\mu$) to describe a photon. More anomalous axion-photon interactions and couplings ($g_{aAA}$, $g_{aBB}$ and $g_{aAB}$) arise in...
