科研之友
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摘要
The potential of the pointlike charge in a superstrong homogeneous magnetic field B a parts per thousand %26lt;%26lt; m (e) (2) /e (3) a parts per thousand 6 x 10(15) G is considered. It is well known that Coulomb potential is significantly modified by taking into account vacuum polarization (calculated in one loop approximation). We consider electron selfenergy and correction to the vertex function at one loop, and show that these diagrams are not enhanced by magnetic field like eB.We calculate two-loop corrections to the vacuum polarization and find that these contributions are small.
- 出版日期2013-7
