Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-02-13
Phys.Rev. D65 (2002) 043006
Astronomy and Astrophysics
Astrophysics
16 pages, using REVTeX and 5 postscript figures
Scientific paper
10.1103/PhysRevD.65.043006
The vacuum polarization tensor in strong external magnetic fields has been evaluated numerically for various strengths of magnetic fields and momenta of photons under the threshold of the $e^{\pm}$ pair creation. The fitting formula has been obtained which reproduces the calculated results within 10 % of error. The proper time method is employed further to obtain the retarded polarization tensor for finite temperature plasmas.
Kohri Kazunori
Yamada Shoichi
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