Speaker
Young Dae Yoon
(Asia Pacific Center for Theoretical Physics)
Description
Spontaneous magnetic field generation, or magnetogenesis, is an important process in both cosmological and astrophysical contexts. In plasma physics, it is well known that dynamo processes can amplify a given magnetic field, but how the required seed magnetic field is spontaneously generated is relatively less understood. Here I present via analyzing the equation of motion of a magnetized fluid that a term due to the pressure tensor is responsible for seed magnetogenesis in a collisionless plasma. In relativistic regimes, there is an additional term due to a non-commutative relationship between momentum and velocity that further affects magnetogenesis.
