On axial current in rotating and accelerating medium

Understand

Statistical average of the axial current is evaluated on the basis of the covariant Wigner function.

• In the resulting formula, chemical potential $\mu$, angular velocity $\Omega$ and acceleration $a$ enter in combination $\mu \pm (\Omega \pm ia)/2$.
• The limiting cases of zero mass and zero temperature are investigated in detail.
• In the zero-mass limit, the axial current is described by a smooth function only at temperatures higher than the Unruh temperature.