GU, Y , LANZHOU UNIV,DEPT PHYS,LANZHOU 730000,PEOPLES R CHINA.
部门归属:
ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要:
We present a Poisson structure on the basic space of gauge-invariant for spinor electrodynamics. The coupling of the matter and radiation appears in the Poisson structure rather than the energy-momentum tensor. Poincare symmetries are realized as canonical transformations. In particular, we obtain a manifestly gauge-invariant Liouville equation for the density matrix of spinor fields, which exhibits the nonlocal electromagnetic effects explicitly. By letting the Compton wavelength of the matter go to zero, we obtain the Vlasov equation for a polarized relativistic plasma.
