Speaker
Sota Hanai
(Academia Sinica)
Description
Understanding the response of relativistic plasmas is important for elucidating high-energy systems such as neutron stars, the early Universe, and heavy-ion collisions. In these systems, the chirality of fermions is known to induce non-trivial transport phenomena.
Motivated by this, we study electromagnetic collective excitations in magnetized relativistic plasmas, taking the chiral charge density fluctuations into account. We show that transverse photons exhibit a novel type of dynamical screening arising from the chiral anomaly. We further discuss possible implications of this anomalous dynamical screening for neutron-star phenomenology.
Author
Sota Hanai
(Academia Sinica)