TY  - THES
A1  - Sheng, Xinli
T1  - Wigner function for spin-1/2 fermions in electromagnetic fields
N2  - We study the Wigner function for massive spin-1/2 fermions in electromagnetic fields. The Wigner function is analytically solved in five cases when electromagnetic fields are constants. For a general space-time dependent field configuration, we use the method of semi-classical expansion and solved the Wigner function at linear order in the Planck's constant. At the same order, we obtained a generalized Boltzmann equation for particle distribution, and a generalized BMT equation for spin polarization. Using the Wigner function, we calculated some physical quantities in a thermal equilibrium system.
KW  - Wigner function
KW  - electromagnetic fields
KW  - chiral effect
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/52650
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-526504
CY  - Frankfurt am Main
ER  -